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I found the TFT screen and Uno on Banggood.com about a month ago and over the weekend I was messing with the pair and found the tftbmp draw code in the demo.. I extended it with the ability to read any bmp file on the SD card.. so all you do is put your bitmaps on the SD and plug it in.. Having to add/edit/recompile/reload the Uno everytime is BS... Here is my code:

This mini oscilloscope is designed for electronic hobbyists to learn about electronics, soldering, programming and STM32. It contains main controller board, TFT LCD and other electronic components to DIY a functional mini digital oscilloscope.

Install Arduino tft gfx libs and all things ILI9341 (Arduino ‘manage libraries…’ menu item). I think the Adafruit website has a few howto guides on this.

Get an example tft sketch up and set TFT_DC & TFT_RST to your desired microcontroller digital out pins. TFT_CS never worked for me so I set it to -1 (n/a)

STM32 is a family of 32-bit microcontroller integrated circuits by STMicroelectronics. The STM32 chips are grouped into related series that are based around the same 32-bit ARM processor core, such as the Cortex-M33F, Cortex-M7F, Cortex-M4F, Cortex-M3, Cortex-M0+, or Cortex-M0. Internally, each microcontroller consists of the processor core, static RAM, flash memory, debugging interface, and various peripherals.

The STM32 is a family of microcontroller ICs based on the 32-bit RISC ARM Cortex-M33F, Cortex-M7F, Cortex-M4F, Cortex-M3, Cortex-M0+, and Cortex-M0 cores.STMicroelectronics licenses the ARM Processor IP from ARM Holdings. The ARM core designs have numerous configurable options, and ST chooses the individual configuration to use for each design. ST attaches its own peripherals to the core before converting the design into a silicon die. The following tables summarize the STM32 microcontroller families.

In November 2010, ST announced the STM32 F2-series chips based on the ARM Cortex-M3 core, and future development of chips based on the ARM Cortex-M4 and ARM Cortex-M3 cores.

In September 2012, ST announced full-production of STM32 F3-series chips and STM32F3DISCOVERY board. The STM32 F050-series will also be available in a TSSOP20 package.

In October 2018, ST announced the STM32L5 series, ultra-low-power MCUs based on the ARM Cortex-M33 core with a variety of security features, such as TrustZone, Secure Boot, active IO tamper detection, Secure Firmware Install loader, certified cryptolib etc.

In February 2021, ST announced the STM32U5 series, ultra-low-power MCUs based on the ARM Cortex-M33 core with a variety of low power and security features, such as TrustZone, Secure Boot, active IO tamper detection, hardware-based protection targeting PSA and SESIP assurance level 3, etc.

The STM32 family consists of 17 series of microcontrollers: H7, F7, F4, F3, F2, F1, F0, G4, G0, L5, L4, L4+ L1, L0, U5, WL, WB.Cortex-M7F, Cortex-M4F, Cortex-M33, Cortex-M3, Cortex-M0+, or Cortex-M0 ARM processor core. The Cortex-M4F is conceptually a Cortex-M3DSP and single-precision floating-point instructions.

The STM32 H7-series is a group of high performance STM32 microcontrollers based on the ARM Cortex-M7F core with double-precision floating point unit and optional second Cortex-M4F core with single-precision floating point. Cortex-M7F core can reach working frequency up to 480 MHz, while Cortex-M4F - up to 240 MHz. Each of these cores can work independently or as master/slave core.

The STM32H7 Series is the first series of STM32 microcontrollers in 40 nm process technology and the first series of ARM Cortex-M7-based microcontrollers which is able to run up to 480 MHz, allowing a performance boost versus previous series of Cortex-M microcontrollers, reaching new performance records of 1027 DMIPS and 2400 CoreMark.

The STM32 F7-series is a group of STM32 microcontrollers based on the ARM Cortex-M7F core. Many of the F7 series are pin-to-pin compatible with the STM32 F4-series.

The STM32 F4-series is the first group of STM32 microcontrollers based on the ARM Cortex-M4F core. The F4-series is also the first STM32 series to have DSP and floating-point instructions. The F4 is pin-to-pin compatible with the STM32 F2-series and adds higher clock speed, 64 KB CCM static RAM, full-duplex I²S, improved real-time clock, and faster ADCs. The summary for this series is:

The STM32 F3-series is the second group of STM32 microcontrollers based on the ARM Cortex-M4F core. The F3 is almost pin-to-pin compatible with the STM32 F1-series. The summary for this series is:

The STM32 F2-series of STM32 microcontrollers based on the ARM Cortex-M3 core. It is the most recent and fastest Cortex-M3 series. The F2 is pin-to-pin compatible with the STM32 F4-series. The summary for this series is:

The STM32 F1-series was the first group of STM32 microcontrollers based on the ARM Cortex-M3 core and considered their mainstream ARM microcontrollers. The F1-series has evolved over time by increasing CPU speed, size of internal memory, variety of peripherals. There are five F1 lines: Connectivity (STM32F105/107), Performance (STM32F103), USB Access (STM32F102), Access (STM32F101), Value (STM32F100). The summary for this series is:

The STM32 G4-series is a next generation of Cortex-M4F microcontrollers aiming to replace F3 series, offering the golden mean in productivity and power efficiency, e.g. better power efficiency and performance compared to the older F3/F4 series and higher performance compared to ultra low power L4 series, integrated several hardware accelerators.

The STM32 G0-series is a next generation of Cortex-M0/M0+ microcontrollers for budget market segment, offering the golden mean in productivity and power efficiency, e.g. better power efficiency and performance compared to the older F0 series and higher performance compared to ultra low power L0 series

The STM32 L4+-series is expansion of STM32L4-series of ultra-low power microcontrollers, providing more performance, more embedded memory and richer graphics and connectivity features while keeping ultra-low-power capability.

The STM32 L4-series is an evolution of STM32L1-series of ultra-low power microcontrollers. An example of L4 MCU is STM32L432KC in UFQFPN32 package, that has:

The STM32 L1-series was the first group of STM32 microcontrollers with a primary goal of ultra-low power usage for battery-powered applications. The summary for this series is:

Common peripherals included in all IC packages are USB 2.0 FS, two SPI, two I²C, three USART, eight 16-bit timers, two watchdog timers, temperature sensor, 16 to 24 channels into one ADC, two DACs, 37 to 83 GPIOs, seven DMA, real-time clock (RTC), cyclic redundancy check (CRC) engine. The STM32FL152 line adds a LCD controller.

The STM32 L0-series is the first group of STM32 microcontrollers based on the ARM Cortex-M0+ core. This series targets low power applications. The summary for this series is:

capacitive touch sense and 32-bit random number generator (only L0x2 and L0x3 chips), LCD controller (only L0x3 chips), 128-bit AES engine (only L06x chips).

NUCLEO-G431KB board for STM32G431KB6U MCU with 170 MHz Cortex-M4F core, 128 KB flash (HW ECC), 16 KB SRAM (HW parity), 6 KB SRAM, 10 KB CCM SRAM, STLINK-V3E.

NUCLEO-L412KB board for STM32L412KBU6 MCU with 80 MHz Cortex-M4F core, 128 KB flash (HW ECC), 32 KB SRAM, 8 KB SRAM (HW parity), external quad-SPI memory interface.

NUCLEO-L432KC board for STM32L432KCU6 MCU with 80 MHz Cortex-M4F core, 256 KB flash (HW ECC), 48 KB SRAM, 16 KB SRAM (HW parity), external quad-SPI memory interface.

NUCLEO-F303RE board for STM32F303RET6 MCU with 72 MHz Cortex-M4F core, 512 KB flash, 32 KB SRAM, 48 KB SRAM (HW parity), external static memory interface.

NUCLEO-F446RE board for STM32F446RET6 MCU with 180 MHz Cortex-M4F core, 512 KB flash, 128 KB SRAM, external quad-SPI memory interface, external flexible memory interface.

NUCLEO-L433RC-P board for STM32L433RCT6P MCU with 80 MHz Cortex-M4F core, 256 KB flash (HW ECC), 48 KB SRAM, 16 KB SRAM (HW parity), external quad-SPI memory interface, SMPS power.

NUCLEO-L452RE-P board for STM32L452RET6P MCU with 80 MHz Cortex-M4F core, 512 KB flash (HW ECC), 128 KB SRAM, 32 KB SRAM (HW parity), external quad-SPI memory interface, SMPS power.

NUCLEO-L452RE board for STM32L452RET6 MCU with 80 MHz Cortex-M4F core, 512 KB flash (HW ECC), 128 KB SRAM, 32 KB SRAM (HW parity), external quad-SPI memory interface.

NUCLEO-L476RG board for STM32L476RGT6 MCU with 80 MHz Cortex-M4F core, 1024 KB flash (HW ECC), 96 KB SRAM, 32 KB SRAM (HW parity), external quad-SPI memory interface, external static memory interface.

This family has 144-pin STM32 ICs, Arduino Uno Rev3 female headers, ST Zio female headers, ST Morpho male pin headers (two 19x2), second Micro-AB USB connector, and RJ45 Ethernet connector (some boards).

NUCLEO-F207ZG board for STM32F207ZGT6 MCU with 120 MHz Cortex-M3 core, 1024 KB flash (HW ECC), 128 KB SRAM, 4 KB battery-back SRAM, external static memory interface, ethernet.

NUCLEO-F303ZE board for STM32F303ZET6 MCU with 72 MHz Cortex-M4F core, 512 KB flash (HW ECC), 32 KB SRAM, 48 KB SRAM (HW parity), external static memory interface.

NUCLEO-F412ZG board for STM32F412ZGT6 MCU with 100 MHz Cortex-M4F core, 1024 KB flash, 256 KB SRAM, external quad-SPI memory interface, external static memory interface.

NUCLEO-F429ZI board for STM32F429ZIT6 MCU with 180 MHz Cortex-M4F core, 2048 KB flash, 256 KB SRAM, 4 KB battery-back SRAM, external flexible memory interface, ethernet.

NUCLEO-F439ZI board for STM32F439ZIT6 MCU with 180 MHz Cortex-M4F core, 2048 KB flash, 256 KB SRAM, 4 KB battery-back SRAM, external flexible memory interface, ethernet, cryptographic acceleration.

NUCLEO-F446ZE board for STM32F446ZET6 MCU with 180 MHz Cortex-M4F core, 512 KB flash, 128 KB SRAM, 4 KB battery-back SRAM, external quad-SPI memory interface, external flexible memory interface.

NUCLEO-F746ZG board for STM32F746ZGT6 MCU with 216 MHz Cortex-M7F core (4 KB data cache, 4 KB instruction cache), 1024 KB flash, 336 KB SRAM, 4 KB battery-back SRAM, 1 KB OTP, external quad-SPI memory interface, external flexible memory interface, ethernet.

NUCLEO-F767ZI board for STM32F767ZIT6 MCU with 216 MHz Cortex-M7F-DP core (16 KB data cache, 16 KB instruction cache), 2048 KB flash, 528 KB SRAM, 4 KB battery-back SRAM, external quad-SPI memory interface, external flexible memory interface, ethernet.

A discovery board for STM32F429ZIT6 microcontroller with 180 MHz ARM Cortex-M4F core, 2048 KB flash, 256 KB RAM, 4 KB battery-backed RAM in LQFP144 package.

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 8 MB SDRAM (IS42S16400J), 2.4-inch 320x200 TFT LCD color display (SF-TC240T), touchscreen controller (STMPE811), gyroscope (L3GD20), 2 user LEDs, user button, reset button, Full-Speed USB OTG to second Micro-AB USB connector, and two 32x2 male pin headers.

A discovery board for STM32F407VGT6 microcontroller with 168 MHz ARM Cortex-M4F core, 1024 KB flash, 192 KB RAM, 4 KB battery-backed RAM in LQFP100 package.

A discovery board for STM32L152RBT6 microcontroller with 32 MHz ARM Cortex-M3 core, 128 KB flash (with ECC), 16 KB RAM, 4 KB EEPROM (with ECC) in LQFP64 package.

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 24-segment LCD, touch sensors, 2 user LEDs, user button, reset button, and two 28x1 male pin headers.

A discovery board for STM32L152RCT6 microcontroller with 32 MHz ARM Cortex-M3 core, 256 KB flash (with ECC), 32 KB RAM, 8 KB EEPROM (with ECC) in LQFP64 package.

This board includes an integrated ST-LINK/V2 debugger via Mini-B USB connector, 24-segment LCD, touch sensors, 2 user LEDs, user button, reset button, and two 28x1 male pin headers.

A discovery board for STM32L100RCT6 microcontroller with 32 MHz ARM Cortex-M3 core, 256 KB flash (with ECC), 16 KB RAM, 4 KB EEPROM (with ECC) in LQFP64 package.

The evaluation board has a built-in 2.4 GHz IEEE 802.15.4 transceiver and Lower MAC (so supports 802.15.4, ZigBee RF4CE, ZigBee Pro, 6LoWPAN (Contiki) wireless protocols). The SoC contains 128-Kbyte flash and 8-Kbyte RAM memory. Flash memory is upgradable too via USB. It has an ARM Serial Wire Debug (SWD) interface (Remote board) and is designed to be powered by USB or with 2 AAA batteries (Remote board). There are two user-defined LEDs (green and yellow) and five push buttons to create easy-to-use remote functions (remote board).

A ready-to-use Java development kits for its STM32 microcontrollers. The STM3220G-JAVA Starter Kit combines an evaluation version of IS2T"s MicroEJ® Software Development Kit (SDK) and the STM32F2 series microcontroller evaluation board providing everything engineers need to start their projects.

MicroEJ provides extended features to create, simulate, test and deploy Java applications in embedded systems. Support for Graphical User Interface (GUI) development includes a widget library, design tools including storyboarding, and tools for customizing fonts.STM32F205VGT6J.

A prototyping environment for a variety of STM32 variants, which allows users to create their applications using an application programming interface (API) to implement device peripherals and a range of evaluation features on the EvoPrimer base including TFT color touchscreen, graphical user interface, joy stick, codec-based audio, SD card, IrDA and standard peripherals such as USB, USART, SPI, I2C, CAN, etc.

Simulink, by MathWorks provides model-based design solutions to design embedded systems. The Embedded Coder Support Package for STMicroelectronics Discovery Boards and the Simulink Coder Support Package for STMicroelectronics Nucleo Boards provide parameter tuning, signal monitoring and one-click deployment of Simulink algorithms to STM32 boards with access to peripherals like ADC, PWM, GPIOs, I²C, SPI, SCI, TCP/IP, UDP, etc.

All STM32 microcontrollers have a ROM"ed bootloader that supports loading a binary image into its flash memory using one or more peripherals (varies by STM32 family). Since all STM32 bootloaders support loading from the USART peripheral and most boards connect the USART to RS-232 or a USB-to-UART adapter IC, thus it"s a universal method to program the STM32 microcontroller. This method requires the target to have a way to enable/disable booting from the ROM"ed bootloader (i.e. jumper / switch / button).

STMicroelectronics has additional documents, such as: evaluation board user manuals, application notes, getting started guides, software library documents, errata, and more. See External Links section for links to official STM32 and ARM documents.

The Insider"s Guide To The STM32 ARM Based Microcontroller; 2nd Edition (v1.8); Trevor Martin; Hitex; 96 pages; 2009; ISBN 0-9549988-8-X. (Download) (Other Guides)

µC/TCP-IP: The Embedded Protocol Stack for the STMicroelectronics STM32F107; 1st Edition; Christian Légaré; Micrium; 824 pages; 2010; ISBN 978-0-9823375-0-9.