ESP32-WROOM-32-M.2

Update:
2023/6: The core board and the base board are online https://oshwhub.com/alitas/M.2-SHELL-A.
An introduction. Main
control: esp32-wroom-32 module, dual-core CPU, up to 240MHZ, supports Bluetooth 4.2+ wifi
USB serial port automatic download circuit, supports one-click download
Type-C serial port communication + power supply, M.2 (M-KEY 4+5 specifications) interface leads to all available IO of the module, convenient for recycling and reuse
Single-sided layout, minimum component size 0603 is convenient for manual welding or using the heating table
core board. The input voltage is 3.3-5v, and the maximum external output current is <300MA.
The half-hole frame can be drawn directly. There is no need for the half-hole process. The board can be made directly. The board thickness selected 0.8
has passed the board-making verification. The function is normal, the slot, and the half-hole size are appropriate.
2. Information
1. Peripherals:
ADC1: GPIO32-GPIO39, among which
the four pins GPIO34, 35, 36, and 39 can only be used as GPIO input, and the output function of GPIO cannot be used!
ADC2 : GPIO0, GPIO2, GPIO4, GPIO12-GPIO15, GOIO25-GPIO27, among which ADC2 is used for WIFI driver, so if the WIFI function of ESP32 is used, ADC2 will not be used
IIC: two iic channels, any pin can be configured as SCL and SDA, default GPIO21, GPIO22
VSPI: MOSI-GPIO23, MISO-GPIO19, CLK-GPIO18, CS-GPIO5
HSPI: MOSI-GPIO13, MISO-GPIO12, CLK-GPIO14 CS-GPIO15
DAC1:GPIO25
DAC2:GPIO26
PWM: independent 16 channels, any output pin