DFR1216-1 Multi Function Expansion Board Reference: Pinout & Specs

Hardware Preparation

If Using UNIHIKER K10

UNIHIKER K10 * 1
Multi Function Expansion Board for UNIHIKER * 1 (Both “For the UNIHIKER K10-Only” and “For the UNIHIKER K10 & M10” are supported, but “For the UNIHIKER K10 & M10” is recommended, as it allows for easier program uploading and debugging even when using only the K10)

If Using UNIHIKER M10

UNIHIKER M10 * 1
Multi Function Expansion Board for UNIHIKER * 1 (Only the “For the UNIHIKER K10 & M10” option is supported)

Note: The multi-functional expansion board requires separate power supply when IN use. It can be powered by installing an 18650 battery or from the USB IN of the expansion board, and the PWR power supply switch needs to be turned on.

Extra hardware

Gravity: Analog Rotation Potentiometer Sensor * 1 or other digital sensors
Gravity: Digital Push Button * 1 or other digital sensors

Software Preparation

If Using Mind+

Mind+ Download
- Mind+ User Extension: https://github.com/YeezB/ext-UnihikerExpansion

If Using Arduino IDE

Arduino IDE Download
- Arduino library: https://github.com/dfrobot/DFRobot_UnihikerExpansion

Hardware Connection

DFR1216 connection

Use UNIHIKER K10 & Mind+

Use UNIHIKER K10 & Arduino IDE

#include "DFRobot_UnihikerExpansion.h"
DFRobot_UnihikerExpansion_I2C eunihiker(&Wire);
void setup()
{
	Serial.begin(115200);
	while(!eunihiker.begin()){
		Serial.println("NO Deivces !");
		delay(1000);
	} 
	Serial.println("Device connected !");
	eunihiker.setMode(eC0, eReadGpio);
	eunihiker.setMode(eC1, eWriteGpio);
}

void loop()
{
	if(eunihiker.getGpioState(eC0) == 1){
		eunihiker.setGpioState(eC1, eHIGH);
	}
	else{
		eunihiker.setGpioState(eC1, eLOW);
	}
}

UNIHIKER K10 Result

Light on when the button has been pushed down.
Light off when the button has been released.

Use UNIHIKER M10 & Mind+

Use UNIHIKER M10 & Python

from pinpong.board import Board
from dfrobot_unihiker_expansion import UnihikerExpansion, IONum, IOType, GpioState
sys.path.append("/root/mindplus/.lib/thirdExtension/drobot_yeezb-unihikerioexpansion-thirdex")

Board("").begin()

eunihiker = UnihikerExpansion()
eunihiker.set_mode(IONum.C0, IOType.GPIO_IN)
eunihiker.set_mode(IONum.C1, IOType.GPIO_OUT)
while True:
    if (eunihiker.get_gpio_state(IONum.C0) == 1):
        eunihiker.set_gpio_state(IONum.C1, GpioState.HIGH)
    else:
        eunihiker.set_gpio_state(IONum.C1, GpioState.LOW)

UNIHIKER M10 Result