test-hardware

repository containing working test sketches and code for modules and microcontrollers

Tested Components

Module/Peripheral	Arduino	Espressif	Tang Nano 9k FPGA	RP2040
0V7679 Camera Module	✔	✔
16x2 I²C LCD	✔	✔
28BYJ-48 5v Stepper Motor + ULN2003 driver	✔	✔
A0221AT Ultrasonic Sensor (Waterproof, Controlled)	✔	✔
BME280 Environment Sensor		✔
DHT11 Temperature and Humidity Sensor	✔	✔
DS18B20 Temperature Sensor (probe)	✔	✔
HCSR04 Ultrasonic Sensor	✔	✔
ILI9341 TFT LCD		✔
JSN-SR04M Ultrasonic Sensor (Waterproof)	✔	✔
SEN0564 Mems CO Sensor		✔
SIM800L (and EVB) GSM Module	✔	✔
SPI LCD			✔
SX1278 LoRa module	✔	✔	✔

Compilation for different LoRa modes

Set the envs in the .ini file for lora_rx and lora_tx then run pio run -e <lora_rx or lora_tx>

Global installation of libraries

• pio pkg install -g --library "<library name from pio library tab>" or
• pio pkg install -g --library "<git url>"

Custom debug.h header file

Create a debug folder inside the library folder and copy-paste the debug.h header file inside

• PlatformIO: C:\Users\<username>\.platformio\lib
• Arduino IDE: C:\Users\<username>\Documents\Arduino\libraries

Add this build flag in the .ini file, setting the DDEBUG value to 1 enables debugging, while 0 disables it build_flags = -DDEBUG=<value>

Never forgetti

• add the pio.exe to environment variabes
• do not include angled brackets <>

Extra Notes

• Some ESP32s require the boot button to be held while uploading sketch, attach a 10uF capacitor parallel to the boot button
• L CH340G 🥀, W CP2102 🙏