ASRPRO offline voice expansion board

An expansion board drawn using Tianwen's offline voice chip ASRPRO. If you like, you can build one yourself
! [222IMG_20230522_130005.jpg] ![222IMG_20230522_125944.jpg] The temperature sensor is on pin PA1
ws2812 is on PA6
OLED (SDA -PA4 SCL - PA5)
Use serial port 2 (PA2.PA3) to communicate with esp01.
PA4 has a small lamp bead.




The physics required for low-level lighting (the BOM is not accurate, you can see below or check the schematic diagram yourself):
1: ESP01S x1
2: 0.96-inch OLED (I2C) x1
3: ds18b20 temperature sensor x1
4: ws2812 lamp beads x3
5: asrpro chip (you can buy the core board and disassemble it yourself) x1
6: 8002A power amplifier x1
7: Microphone x1
8: ss14 Schottky diode (sod_123) x1
9: 0603 light-emitting diode x2
10: Micro female header x1
11: Some capacitors and resistors, roughly counted (0603 package):
capacitor (100uf: 7 pcs, 1uf: 1 pc, 4.7uf: 7 pcs)
Resistor (0k: 1 , 2.2k: 3, 4.7k: 7, 10k: 6, 22k: 2)
12: Number of pin headers and female headers
13: Jumper jumper x1 (if there is no official downloader, you can connect a switch here, It will be more convenient when downloading the program. If it is running normally, use the jumper.)
That should be it. If there is anything else, I will add it myself.
** The 5v power supply I use for ESP01 should be 3v3, but I am too lazy to do it. It's pretty normal for me to use it. There are risks in copying it. I won't be responsible if it breaks, haha**