Description:
1. Onboard ATmega32A;
2. AD conversion reference voltage is added with filter inductor and capacitor;
3. Crystal holder, convenient to replace the required crystal oscillator;
4. All IO ports are drawn and marked;
5. Both ISP and JTAG interfaces are extracted and labeled;
6. Reliable reset circuit;
7. Lead up to four LEDs for simple testing;
8.miniUSB power supply, onboard AMS1117-3.3 power chip, optional 5v or 3.3v working voltage
9.PCB specification: 46.4×60.5 (mm)