CapacitiveSensor cs_4_8 = CapacitiveSensor(4,8) // 10M resistor between pins 4 & 8, pin 8 is sensor pin, add a wire and or foilĬs_4_2. CapacitiveSensor cs_4_6 = CapacitiveSensor(4,6) // 10M resistor between pins 4 & 6, pin 6 is sensor pin, add a wire and or foil #include //change '42' to any desired pin.ĬapacitiveSensor cs_4_2 = CapacitiveSensor(4,2) I'm hoping someone can help me, here's the original code for the single sensor and relay #include I've been trying to isolate the problem for a while now and have gotten nowhere. But when i tried adding another sensor and relay, it stopped working. It worked great and I was able to adjust the distance and sensitivity. Wire.So I have been messing around with the Arduino Capsense library with the immensely helpful guide (many thanks to DangerousTim!) using the code provided, i managed to get a relay to operate with a sensor. Wire.write(val++) // sends potentiometer value byte

Wire.write(byte(0x55)) // sends instruction byte

Wire.beginTransmission(44) // transmit to device #44 (0x2c) Wire.begin() // join i2c bus (address optional for master)

Connect the Grove cable from the Capacitive Soil Moisture Sensor to the. If I reduce the transmission to just the step #2 instruction single data byte, the same result is shown. Using the capacitor sensor with an Arduino is simple as the Arduino has a built. The 2 data bytes are not being transmitted. The only byte I can see in my oscilloscope is just the first one (please see picture below). variable 1 test byte constantly incremented.first the I2C protocol device address - Start / 8 + 1bits.work fine using standard Arduino libraries, the mentioned example doesn't work for me in my working NANO board. Although several I2C devices like DS3231 RTC, etc. I am an experienced assembler and C/C++ programmer and hardware developer/designer. I just copied and reduced the code below a little from the example. Written by Nicholas Zambetti and Shawn Bonkowski, demonstrates use of the Wire library. I am starting to study the Wire library (no previous Arduino Wire library experience), I read some info taken from here.Īs you all know, this really simple example changes the value of a AD5171 digital potentiometer via I2C.

Arduino wire library capacitive load