Example Code for UNIHIKER K10 - Retrieve DS18B20 temperature sensor data

Hardware Preparation

• UNIHIKER K10 * 1
• Multi Function Expansion Board for UNIHIKER * 1
• Gravity DS18B20 Digital Temperature Sensor * 1

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.

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

Use UNIHIKER K10 & Mind+

Use UNIHIKER K10 & Arduino IDE

#include "unihiker_k10.h"
#include "DFRobot_UnihikerExpansion.h"
DFRobot_UnihikerExpansion_I2C eunihiker(&Wire);
UNIHIKER_K10 k10;
uint8_t screen_dir=2;

void setup() {
  k10.begin();
  while(!eunihiker.begin()){
    Serial.println("NO Deivces !");
    delay(1000);
  } Serial.println("Device connected !");
  eunihiker.setMode(eC0, eDS18B20);
  k10.initScreen(screen_dir);
  k10.creatCanvas();
}
void loop() {
  k10.canvas->canvasText("18B20 Temp:", 1, 0x0000FF);
  k10.canvas->canvasText((eunihiker.get18b20Value(eC0)), 2, 0x0000FF);
  k10.canvas->updateCanvas();
}

UNIHIKER K10 Result