M5StickC_DAC

The DA Converter for M5StickC. It makes the potential difference between + and -.

https://m5stack.com/products/m5stickc-dac-hat-mcp4725

wired(obniz, {[scl, sda, vcc, gnd, i2c]})

connect to the obniz Board.
When using M5StickC, You do not need to assign pins.

// JavaScript Examples
var dac = obniz.wired("M5StickC_DAC", {sda:0, scl:26});
dac.setVoltage(1.5);

When using other devices, assign vcc and gnd as appropriate pins.

// JavaScript Examples
var dac = obniz.wired("M5StickC_DAC", {sda:0, scl:26});
dac.setVoltage(1.5);

setVoltage(voltage)

make the potential difference.
specify a value between 0 and 3.3(V).

// JavaScript Examples
var dac = obniz.wired("M5StickC_DAC", {sda:0, scl:26});
dac.setVoltage(1.5);