OneWire VS CapacitiveSensor

https://github.com/PaulStoffregen/OneWire (for the sensor)

Try looking into the Analog Devices (formerly Maxim, formerly Dallas Semi) DS2401+. Paul Stoffregren's OneWire library should work.

Each One Wire device (OWD) has a unique, 64-bit (8-byte) ID that is used to address that particular device. Have a look at the DS18x20 temperature sensor example. You'll see that a search for devices is done. If one is found, its address is stored in a 8-byte array.

// OneWire DS18S20, DS18B20, DS1822 Temperature Example // // http://www.pjrc.com/teensy/td_libs_OneWire.html // // The DallasTemperature library can do all this work for you! // http://milesburton.com/Dallas_Temperature_Control_Library #include #include #include // Enter a MAC address and IP address for your controller below. // The IP address will be dependent on your local network: byte mac[] = {   0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; IPAddress ip(192, 168, 1, 70); // ThingSpeak Settings char thingSpeakAddress[] = "api.thingspeak.com"; String writeAPIKey = "xxxxxxxxxxxxxxxxxxxx"; const int updateThingSpeakInterval = 16 * 1000;      // Time interval in milliseconds to update ThingSpeak (number of seconds * 1000 = interval) // Variable Setup long lastConnectionTime = 0; boolean lastConnected = false; int failedCounter = 0; // Initialize Arduino Ethernet Client EthernetClient client; // Initialize the Ethernet server library // with the IP address and port you want to use // (port 80 is default for HTTP): EthernetServer server(80);

There is SWI (Single wire interface) by Atmel for example. The 1-wire protocol is a specific standard. Not sure what standard this chip uses. It probably is 1-wire. Try this https://www.pjrc.com/teensy/td_libs_OneWire.html

Paul has other libraries one of which is called OneWire. Apparently we are looking at adding supporting lines similar to the entries in the header files held here

https://github.com/PaulStoffregen/OneWire for example

OneWire.h header file for DS18B20 on Arduino

Are you not using the standard OneWire library which does have a constructor that takes a pin as an argument ?

I was trying to setup a touch sensor using this lib https://github.com/PaulStoffregen/CapacitiveSensor. Same schematic on uno and wemos d1 mini. Uno works. Mini not. Why? Instead of int 2, 4 i used the consts D1 and D2 or D2 and D4 with no luck. What do i wrong?

And so I looked into the CapacitiveSensor library supported by Paul Stoffregen