Application: Based on WCH microcontroller, default flashed USB CDC communication application: Basic demo USB to relay control, send 'A' will toggle relay. Baudrate 57600 USB send and read to UART1 interface (TX1 / RX1) Board Features: Relay Control: On board 10A 250VAC, 30VDC relay. Lead out all pins from the microcontroller...
CH559 has more features and bigger flash size. Support USB hub, two USB transceiver, one is normal speed (female A USB pin "DP DM" and micro USB), one is high speed (On board marked "HS USB, pin HP HM"). All lead out pins. On board power led, four programming...
Features USB Stick board size Same footprint and compatible pins for CH552 or CH554, SSOP20 package. On board power led On board GPIO testing led P1.4 On board power regulator 3.3V, jumper select 3.3V or 5V power chip. No need extra programmer, not even USB-TTL tool! To enter into programming...
CH55x is the 8bit enhanced C51 MCU + USB function board, design from WCH company. CH551 is the cheapest entry version of CH55x series. Features USB Stick board size On board power led On board GPIO testing led P3.0 No need programmer, not even USB-TTL tool! To enter into programming mode,...
Based on DRV8825 drive board, or A4988 board. Please buy it alone here. Board main control chip CH554 Accept control signal via USB or RS-485 Send pulse control signal to DRV8825 We provide simple demo code, USB CDC to send 1/2 to run motor Back selectable power VCC 3.3V...
