TempSensor

Firmware written in C++20 that displays the temperature and humidity on a 16x2 LCD

• STM32 L452RET6
• RHT03
• TC1602A-09T

Design

• LCD module

Build

To build the firmware, you need:

• GNU Arm Toolchain 14.1
• Ninja 1.12.1
• CMake 3.31.5
• VS Code
  • CMakeTools extension

1. In VS Code, configure CMake to build for release
2. Hit F7 to build
   • If that doesn't work, press Ctrl+Shift+P, type CMake: Build and press enter

Use STM32CubeProgrammer to flash the elf file in build/release

5V Tolerant Pins

Digital Pin	Port & Pin	5V Tolerant?
D0	PA3	N
D1	PA2	Y
D2	PA10	Y
D3	PB3	Y
D4	PB5	Y
D5	PB4	Y
D6	PB10	Y
D7	PA8	Y
D8	PA9	Y
D9	PC7	Y
D10	PB6	Y
D11	PA7	Y
D12	PA6	Y
D13	PA5	N
D14	PB9	Y
D15	PB8	Y

References

https://github.com/sparkfun/SparkFun_RHT03_Arduino_Library

https://github.com/adafruit/DHT-sensor-library

https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Sensors/Weather/RHT03.pdf

https://cdn-shop.adafruit.com/product-files/181/p181.pdf