arduino uno tetris tft lcd supplier
In electronics world today, Arduino is an open-source hardware and software company, project and user community that designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices. Arduino board designs use a variety of microprocessors and controllers. The boards are equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (‘shields’) or breadboards (for prototyping) and other circuits.
The boards feature serial communications interfaces, including Universal Serial Bus (USB) on some models, which are also used for loading programs. The microcontrollers can be programmed using the C and C++ programming languages, using a standard API which is also known as the “Arduino language”. In addition to using traditional compiler toolchains, the Arduino project provides an integrated development environment (IDE) and a command line tool developed in Go. It aims to provide a low-cost and easy way for hobbyist and professionals to create devices that interact with their environment using sensors and actuators. Common examples of such devices intended for beginner hobbyists include simple robots, thermostats and motion detectors.
In order to follow the market tread, Orient Display engineers have developed several Arduino TFT LCD displays and Arduino OLED displays which are favored by hobbyists and professionals.
Although Orient Display provides many standard small size OLED, TN and IPS Arduino TFT displays, custom made solutions are provided with larger size displays or even with capacitive touch panel.
This very simple stand allows to cover your 2.4 TFT (based on a ILI9341) and a Wemos mini ESP8266 board with an appearance like bought from a gadget dealer - without any "home brew" touch. The TFT, the ESP8266 and the two covers stick together...
UPDATE 2020-05031: A non-modular variant of this design can be found here: https://www.thingiverse.com/thing:4413894 This is a modular enclosure for compact projects incorporating a 2.4" TFT display. I made it for use with Wemos D1 Mini 2.4" TFT...
This horizontal TFT display is based on one of them, the ESP8266 WiFi Color Display Kit 2.4″. Beside of this only 4 M3 nuts and 4 M3x20 screws are required. IMPORTANT NOTE: I realized that I assembled the ESP8266 Wifi Color Display Kit 2.4" slightly...
... assembled and smaller. ...Azsmz sells a nice piece of hardware on Tindie at: https://www.tindie.com/products/cxandy/azsmz-tft-24-touch/?pt=ac_prod_search so I thought I"d make a nice enclosure for it. It"s a little rough but works for my needs....
Tetris Game.... Based: http://vilaca.eu/handheld-arduino-color-console/ 2.4 TFT SPI Screen Arduino Nano (3.3v) or Nano 5v with Logic Level Converter (Bi-Directional) Joystick XY Small Speaker
2.4" TFT Display ILI9341 Box/Housing. There is place to add a power on/off switch in the lateral. Inside I have an Arduino Leonardo, a battery and one IEEE 802.15.4 module to receive data packets. ...Ready for SD hole.
This case is made for a 2.4" TFT screen with touch panel. The design is pretty similar to my other design which uses a smaller 2.2" screen instead: https://www.thingiverse.com/thing:2832880 The user 94Z28 published a remix, which fits a larger Node...
This is a remix of @pedroamz great design for the bigtreetech 2.4" TFT touchscreen https://www.thingiverse.com/thing:3827565. Bigtreetech have changed their hardwaredesign since pedroamz has created his case and some things have been moved like...
This case is made for a 2.4" TFT screen with touch panel. The design is pretty similar to my other design which uses a smaller 2.2" screen instead: https://www.thingiverse.com/thing:2832880 The user 94Z28 published a remix, which fits a larger Node...
ER-TFTM024-3 is 2.4"tft lcd touch shield qvga 320x240 dots,ili9341 controller,available for touch panel controller,sd card slot,font chip,flash,serial+parallel.Souce from EastRising/buydisplay.com
... and the display. Source Code for ESP8266: https://github.com/ThingPulse/esp8266-weather-station-color 2.4" TFT (Must be SPI with pins like this one, otherwise you may have wrong type of screen): https://www.aliexpress.com/item/32871767717.html
... the back. This slot fits this: https://www.parts-express.com/1-2-x-7-8-1w-speaker-8-ohm-ati1016--289-2014 I finally got around to using my 2.4" TFT shields en masse. It went so well I tried to order more, but they seem not to exist anymore! ... :(
Box for a sousvide controller for an Arduino and an 2.4 inch TFT/oled touch screen. See https://github.com/dirkx/SousVide-Arduino-TFT for firmware and other details. And see https://makerspaceleiden.nl for details on machines used....
This library enables you to use Hardware-based PWM channels on Arduino AVR ATtiny-based boards (ATtiny3217, etc.), using megaTinyCore, to create and output PWM to pins.
This library enables you to use ISR-based PWM channels on Arduino AVR ATtiny-based boards (ATtiny3217, etc.), using megaTinyCore, to create and output PWM any GPIO pin.
Small low-level classes and functions for Arduino: incrementMod(), decToBcd(). strcmp_PP(), PrintStr, PrintStrN, printPad{N}To(), printIntAsFloat(), TimingStats, formUrlEncode(), FCString, KString, hashDjb2(), binarySearch(), linearSearch(), isSorted(), reverse(), and so on.
Cyclic Redundancy Check (CRC) algorithms (crc8, crc16ccitt, crc32) programmatically converted from C99 code generated by pycrc (https://pycrc.org) to Arduino C++ using namespaces and PROGMEM flash memory.
Various sorting algorithms for Arduino, including Bubble Sort, Insertion Sort, Selection Sort, Shell Sort (3 versions), Comb Sort (4 versions), Quick Sort (3 versions).
Date, time, timezone classes for Arduino supporting the full IANA TZ Database to convert epoch seconds to date and time components in different time zones.
Clock classes for Arduino that provides an auto-incrementing count of seconds since a known epoch which can be synchronized from external sources such as an NTP server, a DS3231 RTC chip, or an STM32 RTC chip.
Useful Arduino utilities which are too small as separate libraries, but complex enough to be shared among multiple projects, and often have external dependencies to other libraries.
Fast and compact software I2C implementations (SimpleWireInterface, SimpleWireFastInterface) on Arduino platforms. Also provides adapter classes to allow the use of third party I2C libraries using the same API.
Enables Bluetooth® Low Energy connectivity on the Arduino MKR WiFi 1010, Arduino UNO WiFi Rev.2, Arduino Nano 33 IoT, Arduino Nano 33 BLE and Nicla Sense ME.
Fully Asynchronous UDP Library for RASPBERRY_PI_PICO_W using CYW43439 WiFi with arduino-pico core. The library is easy to use and includes support for Unicast, Broadcast and Multicast environments.
The last hope for the desperate AVR programmer. A small (344 bytes) Arduino library to have real program traces and to find the place where your program hangs.
This library enables you to use Hardware-based PWM channels on AVR-based boards, such as Nano, UNO, Mega, Leonardo, 32u4, etc., to create and output PWM.
This library enables you to use ISR-based PWM channels on AVR-based boards, such as Mega-2560, UNO,Nano, Leonardo, etc., to create and output PWM any GPIO pin.
Simple WiFiManager for Blynk and Mega, UNO WiFi Rev2, Teensy, SAM DUE, SAMD21, SAMD51, STM32, nRF52, RP2040-based boards, etc. using WiFiNINA shields, configuration data saved in EEPROM, FlashStorage_SAMD, FlashStorage_STM32, DueFlashStorage, nRF52/RP2040 LittleFS
An Arduino library that takes input in degrees and output a string or integer for the 4, 8, 16, or 32 compass headings (like North, South, East, and West).
Directly interface Arduino, esp8266, and esp32 to DSC PowerSeries and Classic security systems for integration with home automation, remote control apps, notifications on alarm events, and emulating DSC panels to connect DSC keypads.
This library enables you to use Hardware-based PWM channels on Arduino AVRDx-based boards (AVR128Dx, AVR64Dx, AVR32Dx, etc.), using DxCore, to create and output PWM.
This library enables you to use ISR-based PWM channels on Arduino AVRDx-based boards (AVR128Dx, AVR64Dx, AVR32Dx, etc.), using DxCore, to create and output PWM any GPIO pin.
Small and easy to use Arduino library for using push buttons at INT0/pin2 and / or any PinChangeInterrupt pin.Functions for long and double press detection are included.Just connect buttons between ground and any pin of your Arduino - that"s itNo call of begin() or polling function like update() required. No blocking debouncing delay.
Arduino library for controlling standard LEDs in an easy way. EasyLed provides simple logical methods like led.on(), led.toggle(), led.flash(), led.isOff() and more.
OpenTherm Library to control Central Heating (CH), HVAC (Heating, Ventilation, Air Conditioning) or Solar systems by creating a thermostat using Arduino IDE and ESP32 / ESP8266 hardware.
An ESP8266/ESP32-AT library for Arduino providing an easy-to-use way to control ESP8266-AT/ESP32-AT WiFi shields using AT-commands. For AVR, Teensy, SAM DUE, SAMD21, SAMD51, STM32, nRF52, SIPEED_MAIX_DUINO and RP2040-based (Nano_RP2040_Connect, RASPBERRY_PI_PICO, etc.) boards using ESP8266/ESP32 AT-command shields.
ezTime - pronounced "Easy Time" - is a very easy to use Arduino time and date library that provides NTP network time lookups, extensive timezone support, formatted time and date strings, user events, millisecond precision and more.
A library for implementing fixed-point in-place Fast Fourier Transform on Arduino. It sacrifices precision and instead it is way faster than floating-point implementations.
The GCodeParser library is a lightweight G-Code parser for the Arduino using only a single character buffer to first collect a line of code (also called a "block") from a serial or file input and then parse that line into a code block and comments.
Arduino library for the Flysky/Turnigy RC iBUS protocol - servo (receive) and sensors/telemetry (send) using hardware UART (AVR, ESP32 and STM32 architectures)
An Arduino library to control the Iowa Scaled Engineering I2C-IRSENSE ( https://www.iascaled.com/store/I2C-IRSENSE ) reflective infrared proximity sensor.
Convinient way to map a push-button to a keyboard key. This library utilize the ability of 32u4-based Arduino-compatible boards to emulate USB-keyboard.
This library allows you to easily create light animations from an Arduino board or an ATtiny microcontroller (traffic lights, chaser, shopkeeper sign, etc.)
LiquidCrystal fork for displays based on HD44780. Uses the IOAbstraction library to work with i2c, PCF8574, MCP23017, Shift registers, Arduino pins and ports interchangably.
This library enables you to use ISR-based PWM channels on RP2040-based boards, such as Nano_RP2040_Connect, RASPBERRY_PI_PICO, with Arduino-mbed (mbed_nano or mbed_rp2040) core to create and output PWM any GPIO pin.
Arduino library for MCP4728 quad channel, 12-bit voltage output Digital-to-Analog Convertor with non-volatile memory and I2C compatible Serial Interface
This library enables you to use Hardware-based PWM channels on megaAVR-based boards, such as UNO WiFi Rev2, AVR_Nano_Every, etc., to create and output PWM.
This library enables you to use ISR-based PWM channels on an Arduino megaAVR board, such as UNO WiFi Rev2, AVR_Nano_Every, etc., to create and output PWM any GPIO pin.
Replace Arduino methods with mocked versions and let you develop code without the hardware. Run parallel hardware and system development for greater efficiency.
A library package for ARDUINO acting as ModBus slave communicating through UART-to-RS485 converter. Originally written by Geabong github user. Improved by Łukasz Ślusarczyk.
This library enables you to use ISR-based PWM channels on an nRF52-based board using Arduino-mbed mbed_nano core such as Nano-33-BLE to create and output PWM any GPIO pin.
This library enables you to use ISR-based PWM channels on an nRF52-based board using Adafruit_nRF52_Arduino core such as Itsy-Bitsy nRF52840 to create and output PWM any GPIO pin.
An Arduino library for the Nano 33 BLE Sense that leverages Mbed OS to automatically place sensor measurements in a ring buffer that can be integrated into programs in a simple manner.
his library enables you to use Hardware-based PWM channels on RP2040-based boards, such as Nano_RP2040_Connect, RASPBERRY_PI_PICO, with either Arduino-mbed (mbed_nano or mbed_rp2040) or arduino-pico core to create and output PWM to any GPIO pin.
This library enables you to use SPI SD cards with RP2040-based boards such as Nano_RP2040_Connect, RASPBERRY_PI_PICO using either RP2040 Arduino-mbed or arduino-pico core.
This library enables you to use ISR-based PWM channels on RP2040-based boards, such as ADAFRUIT_FEATHER_RP2040, RASPBERRY_PI_PICO, etc., with arduino-pico core to create and output PWM any GPIO pin.
The most powerful and popular available library for using 7/14/16 segment display, supporting daisy chaining so you can control mass amounts from your Arduino!
Enables smooth servo movement. Linear as well as other (Cubic, Circular, Bounce, etc.) ease movements for servos are provided. The Arduino Servo library or PCA9685 servo expanders are supported.
An associative container used either as a list or btree without needing std lib, and a concurrent circular buffer. Works from AVR/Uno upwards to ESP32, mbed etc
Enables reading and writing on SD card using SD card slot connected to the SDIO/SDMMC-hardware of the STM32 MCU. For slots connected to SPI-hardware use the standard Arduino SD library.
Menu library for Arduino with IoT capabilities that supports many input and display devices with a designer UI, code generator, CLI, and strong remote control capability.
A library for creating Tickers which can call repeating functions. Replaces delay() with non-blocking functions. Recommanded for ESP and Arduino boards with mbed behind.
This library enables you to use Interrupt from Hardware Timers on an Arduino, Adafruit or Sparkfun AVR board, such as Nano, UNO, Mega, Leonardo, YUN, Teensy, Feather_32u4, Feather_328P, Pro Micro, etc.
This library enables you to use Interrupt from Hardware Timers on supported Arduino boards such as AVR, Mega-AVR, ESP8266, ESP32, SAMD, SAM DUE, nRF52, STM32F/L/H/G/WB/MP1, Teensy, Nano-33-BLE, RP2040-based boards, etc.
Really tiny library to basic RTC functionality on Arduino. DS1307, DS3231 and DS3232 RTCs are supported. See https://github.com/Naguissa/uEEPROMLib for EEPROM support. Temperature, Alarms, SQWG, Power lost and RAM support.
Monochrome LCD, OLED and eInk Library. Display controller: SSD1305, SSD1306, SSD1309, SSD1312, SSD1316, SSD1318, SSD1320, SSD1322, SSD1325, SSD1327, SSD1329, SSD1606, SSD1607, SH1106, SH1107, SH1108, SH1122, T6963, RA8835, LC7981, PCD8544, PCF8812, HX1230, UC1601, UC1604, UC1608, UC1610, UC1611, UC1617, UC1638, UC1701, ST7511, ST7528, ST7565, ST7567, ST7571, ST7586, ST7588, ST75160, ST75256, ST75320, NT7534, ST7920, IST3020, IST3088, IST7920, LD7032, KS0108, KS0713, HD44102, T7932, SED1520, SBN1661, IL3820, MAX7219, GP1287, GP1247, GU800. Interfaces: I2C, SPI, Parallel.
True color TFT and OLED library, Up to 18 Bit color depth. Supported display controller: ST7735, ILI9163, ILI9325, ILI9341, ILI9486,LD50T6160, PCF8833, SEPS225, SSD1331, SSD1351, HX8352C.
RFC6455-based WebSockets Server and Client for Arduino boards, such as nRF52, Portenta_H7, SAMD21, SAMD51, STM32F/L/H/G/WB/MP1, Teensy, SAM DUE, RP2040-based boards, besides ESP8266/ESP32 (ESP32, ESP32_S2, ESP32_S3 and ESP32_C3) and WT32_ETH01. Ethernet shields W5100, W5200, W5500, ENC28J60, Teensy 4.1 NativeEthernet/QNEthernet or Portenta_H7 WiFi/Ethernet. Supporting websocket only mode for Socket.IO. Ethernet_Generic library is used as default for W5x00. Now supporting RP2040W
Enables network connection (local and Internet) and WiFiStorage for SAM DUE, SAMD21, SAMD51, Teensy, AVR (328P, 32u4, 16u4, etc.), Mega, STM32F/L/H/G/WB/MP1, nRF52, NINA_B302_ublox, NINA_B112_ublox, RP2040-based boards, etc. in addition to Arduino MKR WiFi 1010, Arduino MKR VIDOR 4000, Arduino UNO WiFi Rev.2, Nano 33 IoT, Nano RP2040 Connect. Now with fix of severe limitation to permit sending much larger data than total 4K and using new WiFi101_Generic library
Universal Timer with 1 millisecond resolution, based on system uptime (i.e. Arduino: millis() function or STM32: HAL_GetTick() function), supporting OOP principles.
With the conventional Arduino boards, makers also face another common problem - difficulty in troubleshooting their circuit. This is because when it doesn"t work, we do not know whether the problem is due to wire connection or coding.
With Maker UNO, the problem is solved! Not only do the onboard LEDs work as outputs, they can also act as indicators, clearly showing what"s happening on that pin. When the pin is used as input, you can clearly see whether the signal is received by just looking at changes on the LEDs.
One of the brilliant features of the official Arduino Uno is the label printed on its pin headers. It saves us a lot of time when we want to connect the I/O pins to the external circuit. So, we include a set of these label stickers for pin headers in each of the Maker UNO! (Please note that you need to peel off the stickers and stick them on your Maker UNO by yourself)
Don"t throw your box away! There is a small opening on the box for you to plug the USB cable so that you can keep your Maker UNO safely in the original box, no additional casing required.
Maker UNO is fully compatible with Arduino. You can share the same library and code. We put in 12x LEDs, 1x piezo buzzer and 1x programmable button on the Maker UNO. We have removed the DC jack power input socket as most of the boards used in classes are powered using USB. We have also replaced the ATmega16u2 with CH340 to bring down the cost.
The Arduino UNO is a development board which features the ATmega328P microcontroller (MCU). It is a perfect introduction to electronics and coding. The UNO also demonstrates the basics on sensors and actuators.The UNO is the ideal, entry-level board for those who are new to developing on the Arduino platform. It’s a popular board as it is really robust when it comes to tinkering. For those more experienced, it’s still the perfect board for rapid prototyping.
Very. The board contains everything it needs to support the ATmega328P MCU. Just connect it to PC via USB cable or connect it to an AC-to-DC battery.The Arduino Software (IDE) is there to help but the UNO is a sturdy board. You can tinker to your heart’s content without having to worry too much about breaking it. And, if something does go wrong, you can always replace the chip.There is also a community surrounding Arduino which is there with lots of support. So, if you’re ever stuck, just reach out for help. There is also tonnes of resource to help inspire you with your next project. https://www.arduino.cc/
Arduino is an open-source electronics platform consisting of hardware and software. Every aspect is designed to be straightforward so you can learn to code or design a project, quickly and easily. It’s designed for students, programmers, designers, hobbyists and tinkerers.The Arduino open-source software (IDE) is there to help too. It makes is much easier to write code and transfer it to your board.
Here at RS we have 3 versions of the Arduino Uno Development Board:715-4081 Revision 3 for DIP package types769-7409 Revision 3 for SMD package types847-4897 Revision 3 with long pins for DIP package typesThe Uno board is used to develop the AVR ATmega 328 microcontroller and can be powered by either connecting the board to a computer via a USB cable or with an AC to DC adaptor.For Arduino resources:http://labs.arduino.org/
Features of the Arduino Uno• ATmega 16U2 programmed as a USB to serial converter• 14 digital I/O pins (6 can be used as Pulse Width Modulation (PWM) Outputs)• 6 analogue inputs• 16 MHz ceramic resonator• USB connection• Power jack• ICSP header• Reset button
It"s blue! It"s thin! It"s the Arduino Pro Mini! SparkFun"s minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It"s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.
We really wanted to minimize the cost of an Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you"re supplying unregulated power to the board, be sure to connect to the “RAW” pin and not VCC.
The Arduino Uno R3 comes in two models; the normal version and the SMD version. In the SMD version you have the Atmega328 controller IC as an SMD chip soldered into the board, whereas in the normal version the IC is held on the Arduino by an IC Holder.
Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs - light on a sensor, a finger on a button, or a Twitter message - and turn it into an output - activating a motor, turning on an LED, publishing something online.
Arduino Mega is an ATmega2560 core microcontroller development board. Itself has 54 digital input/output terminals (14 PWM outputs), 16 simulation inputs, 4 UARTs (hardware serial ports), using the 16 MHz crystal oscillator. With the bootloader, download the program directly via USB without having to go through other external writers. Supply part of the optional USB power, or external power using a AC-to-DC adapter and battery.
Rapid growth due to open original code, as well as the concept of using Java (cross-platform) C language development environment for Arduino module. The Arduino can easily use the Arduino language with Flash or Processing ... software communication, to make multimedia interactive works. Arduino development IDE interface is based on open-source principles, allows you to download for use in projects.
There are two options for the power supply system of the Arduino Mega. USB direct power supply or external power supply. The power supply will be switched automatically. External supply AC-to-DC adapter or the battery can be selected on this control panel. Limit the voltage range of 6V ~~ 12V, but if the voltage supplied is less than 6V, I / O port may not be supplied to a voltage of 5V, and therefore not stable; If the voltage is greater than 12V, the regulator device may possibly overheat and damage the Arduino MEGA. It is therefore recommended that for the operating supply of 6.5 ~ 12V, the recommended power supply is 7.5V or 9V.
This Nano Mult-Function expansion board is designed specially for Arduino Nano, solving the problem of confusing wiring when a variety of sensors connected.
The ProtoShield is a prototype expansion board with 2 LEDs and 2 buttons, which can be used directly with more convenience. All the pins and power have been lead out. It is very suitable for building prototype circuits with Arduino.
Perfect for engravers, laser cutters, CNC machines and 3D printers. This shield simply sticks on top of your Arduino board and can control up to 4 stepper motors.
Use it to connect Arduino Uno, Arduino Mega 2560, Arduino 101 or any board with the USB female A port of your computer. This is a standard issue USB 2.0 cable. the kind that"s usually used for printers.
Whether you want to build robots, smart devices, or any other electronically controlled projects, this is the book you need. We take you through how to program and connect an Arduino microcontroller board, then explore some great projects to make with it.
But what’s really exciting is the on-board connectivity options. The hugely popular and highly adaptable u-blox NINA-W102 radio module is on there to make this a true IoT champion. This also means you can harness the power of the cloud, with fully Arduino Cloud compatibility.
The Arduino Nano RP2040 Connect is the premium choice for RP2040 devices, and the perfect option for upgrading your projects and unlocking the potential of new ones.
Arduino is an open-source controller board, popular among electronic enthusiasts for making interactive projects. But for those who are not familiar with electronics, adding circuits to Arduino may be tricky. That’s why keyestudio develop this XBEE sensor shield. It can help you connect most sensor modules to Arduino pretty easily. The shield extends the digital and analog interfaces into 3PIN interface. It also comes with RS485 communication and XBEE Bluetooth module interface.
Besides, it also has two 2pin terminal blocks. One is VIN GND terminal block, used to supply the external power for the UNO R3 control board, with an input voltage of DC 7-12V. The other is the Servo_PWR terminal block, used for VCC voltage input/output. If not connecting the external voltage, supply 5V for the shield; if connecting the external voltage, VCC voltage is actually the external input voltage.
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller"s listing for full details.See all condition definitionsopens in a new window or tab
Nick Lim has posted a new project on building a simple Arduino Nano driven Tetris using two Bi-color LED Matrix Driver Modulesthat he has designed and is currently selling on his Tindie store named jollyFactory. These display modules use two MAX7219 chip for driving a bi-color 8×8 LED matrix and are chain-able to expand the size of the LED matrix display as required in your project. Four push switches are used in this project to provide an user interface for navigating and rotating the Tetris blocks. An 8 Ohm speaker is also used in the project to generate an audio tone during the play.
Install Arduino and learn some basic coding. We will provide online guides to code some simple, yet cool, tasks. Then, add a weather station*, learn how to check the battery life, test the speaker, add an ultrasonic distance meter* and more.