【RA】R7FA2E1A72DFL development board

R7FA2E1A72DFL#AA0 development board

Renesas R7FA2E1A72DFL is the smallest development board with pin headers leading to all IOs and separate SWD and URAT debugging interfaces.

There are three onboard touch buttons, which lead to three PWM drive circuits for external light strips, and one rotary potentiometer for adjusting the brightness of the light strip.

Use ESP-WROOM-02 as the WIFI communication module, and the communication board can be used alone (adjust the shorting pad).

By switching the serial port communication through a three-stage eight-pin sliding switch, you can switch between the three modes of ESP-WROOM-02 module burning, MCU burning, and ESP-WROOM-02 and MCU communication!

Bilibili introduction :

https://www.bilibili.com/video/BV1nu411k7Hf?share_source=copy_web

https://www.bilibili.com/video/BV1bA4y1X76g?spm_id_from=333.999.0.0

https://www.bilibili.com/video/BV1FU4y1S7Bm?share_source=copy_web

https://www.bilibili.com/video/BV1z3411P7ZB?share_source=copy_web

It has an eight-pin three-stage switch to switch the serial port mode. The onboard RGB lamp beads can be controlled through the MCU P101, P100, and P500 pins.

Debugging issues

1. The startup of the WIFI module is not smooth. I asked for technical advice and said that GPIO0 needs to be pulled down. It may also be a welding problem.
2. GPIO15 needs to be pulled down. In the design, RGB light G is connected to GPIO15, but the connection was cut off during the debugging process.

Schematic diagram