【RA】485 acquisition control node +352794A

485 acquisition control node based on Renesas R7FA2AL1
First of all, thank you Renesas and Lichuang for organizing the training camp!
The following text
is a running account of how to fill holes. . .
2022 (Why add the year, because the follow-up process will take a long, long, long time...)
4.17 Place the pcb order, the 3D rendering is like this 4.21 Received 2pcs of chips, the price of each piece is 26.16! I picked up a pen by the way ( 4.24 I received pcb 6pcs (a small surprise) 4.26 The entire board welding was completed (almost - "disappeared digital tube") the amazing vertical welding (PMOS was drawn wrong x3) 4.27 Turn on the light and burn it once √
After a long time...
5.2 The irreparable bug finally came.
SHTC3 could not work normally. After a few days of tossing,
the reason was: guessing that the wire pull was unreasonable and the sensor chip was good.
The result: remove it, leave it blank, and wait for the v0.2 version. wifi
module√
buzzer√
led​​​​ ​No problem. After the software is perfected, the pcb v0.2 version will be updated.