Esp32 DevKit v1 by Espressif
Firmware
- DJs ESP32 DOIT DevKit v1 Version 4 (updated 2024-12-18)
- EZ-ESP32 with Adafruit PCA9685 Version 1 (updated 2021-04-30)
The DOIT Esp32 DevKit v1 is a very affordable WiFi module with plenty of IO, including three hardware UARTs. Adding the firmware below makes the WiFi module an EZB that ARC can connect to. This firmware works with ARC versions greater than or equal to 2019.06.25.00.
*Note: For servo use with EZ-Cam, only pins 2,4,12-19,21-23,25-27,32-33 are recommended.
Video Tutorial
WiFi Modes
The code supports two WiFi modes: AP Mode, which turns the ESP32 into a WiFi server your computer connects directly to, and Client Mode, in which the ESP32 connects to your network router. You can view the IP Address and connection status information by viewing the Serial Monitor set to 115,200 in Arduino IDE.
Port Configuration
The pins in ARC are labeled D0 - D23. The ESP32 has GPIO-labeled pins, which are not in any ordered sequence. This translation chart below shows the mapping of the ESP GPIO to ARC Dx pins. The ports labeled TX/RX are the hardware UART ports, which correspond to hardware UART #0 in ARC.
Haha, @nink - suggesting I start another hardware company to compete with my old company? I never want to get into hardware again - I still have nightmares about supply chain issues!
@Atomist, that's great! What a small world. The NABU has been such a great distraction for me. I never imagined I would experience anything like it - probably never will again.
I have to agree that the ESP32 works so well with ARC. I do wish it had more I/O, but that available I2C or UART could expand on that. Or, using a dynamixel or other "smart" servo would be great. There is a line of servos called Feetech that I've found to be somewhat comparable in quality but much lower cost.