arduino oscilloscope tft lcd quotation

Hi guys, welcome to today’s tutorial. Today, we will look on how to use the 1.8″ ST7735  colored TFT display with Arduino. The past few tutorials have been focused on how to use the Nokia 5110 LCD display extensively but there will be a time when we will need to use a colored display or something bigger with additional features, that’s where the 1.8″ ST7735 TFT display comes in.

The ST7735 TFT display is a 1.8″ display with a resolution of 128×160 pixels and can display a wide range of colors ( full 18-bit color, 262,144 shades!). The display uses the SPI protocol for communication and has its own pixel-addressable frame buffer which means it can be used with all kinds of microcontroller and you only need 4 i/o pins. To complement the display, it also comes with an SD card slot on which colored bitmaps can be loaded and easily displayed on the screen.

The schematics for this project is fairly easy as the only thing we will be connecting to the Arduino is the display. Connect the display to the Arduino as shown in the schematics below.

Due to variation in display pin out from different manufacturers and for clarity, the pin connection between the Arduino and the TFT display is mapped out below:

We will use two libraries from Adafruit to help us easily communicate with the LCD. The libraries include the Adafruit GFX library which can be downloaded here and the Adafruit ST7735 Library which can be downloaded here.

We will use two example sketches to demonstrate the use of the ST7735 TFT display. The first example is the lightweight TFT Display text example sketch from the Adafruit TFT examples. It can be accessed by going to examples -> TFT -> Arduino -> TFTDisplaytext. This example displays the analog value of pin A0 on the display. It is one of the easiest examples that can be used to demonstrate the ability of this display.

The second example is the graphics test example from the more capable and heavier Adafruit ST7735 Arduino library. I will explain this particular example as it features the use of the display for diverse purposes including the display of text and “animated” graphics. With the Adafruit ST7735 library installed, this example can be accessed by going to examples -> Adafruit ST7735 library -> graphics test.

The first thing, as usual, is to include the libraries to be used after which we declare the pins on the Arduino to which our LCD pins are connected to. We also make a slight change to the code setting reset pin as pin 8 and DC pin as pin 9 to match our schematics.

Next, we create an object of the library with the pins to which the LCD is connected on the Arduino as parameters. There are two options for this, feel free to choose the most preferred.

The complete code for this is available under the libraries example on the Arduino IDE. Don’t forget to change the DC and the RESET pin configuration in the code to match the schematics.

Uploading the code to the Arduino board brings a flash of different shapes and text with different colors on the display. I captured one and its shown in the image below.

OLED display SSD1306, SH1106, Fix_fft and EEPROM libraries are available in Arduino Mange library section. From here you can download as per your needs.

This oscilloscope is suitable for analyzing waveforms between 10Hz to 20Khz. That is precisely human hearing frequency. So, we can use this to measure audio signals, amplifier signals, and different Bluetooth signals. This oscilloscope should be a good try for them. Also, I think precision matters a lot in signals. If you want to go professional but cheaper, I would recommend DSO138. But this is about 4x the cost of this Arduino oscilloscope, but this one has an analog frequency range of 200khz.

In comparison with This DSO, I have An Article about Raspberry Pi- Pico Oscilloscope, which offers android application compatibility, 2-channel, and 200khz frequency range. See this PI-PICO Oscilloscope from here.

We are trying to use a big touch TFT color screen with a high resolutions, So the project will be updated as soon as possible till then keep supporting us, we did not want any type of financial support, just follow us.

This is a 3.2 inch TFT touch screen expansion board using standard Shield interface and it has good compatibility. It integrates a 3.2-inch touch screen, I2C temperature sensor, TF card holder, level conversion circuit, and the secondary development is easy.With GPRS module, you can design your Arduino phone.With NFC reader module, you can create access control systems with the photos show.With voltage and current sensor, you can make oscilloscope.

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (2.8" diagonal) bright (4 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 pixels with individual pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.

This display can be mounted on an Arduino Mega or Due. It has a fairly high resolution of 320*480 pixels and is also quite large with 3.2 inch LCD size.

All oscilloscopes have three fundamental adjustments through potentiometers, the time base frequency adjustment, amplitude or the voltage scale adjustment, and Y-axis position adjustment.

This is DSO138 2.4″ TFT Handheld Pocket-size Digital Oscilloscope Kit. This DSO138 digital oscilloscope kit adopts ARM Cortex-M3 processor and with 2.4-inch TFT screen.

This boost converter is a great match for DSO138 oscilloscope kit. It can be connected directly to the DSO138 motherboard(not included), make DSO138 oscilloscope to be a portable oscilloscope for better use. Featured By RoboticsBD.