There is an ambiguous call coming from this library. It calls with a u_int32_t argument for which there is no corresponding overoad in function “requestFrom” in the Wire library. Can you fix this?
Here is my program, I’m using PlatformIO:
#include <Arduino.h>
#include <Wire.h>
#include <Adafruit_I2CDevice.h>
#include <Adafruit_I2CRegister.h>
#include “Adafruit_MCP9600.h”
#define I2C_ADDRESS (0x67)
Adafruit_MCP9600 mcp;
void setup()
{
Serial.begin(115200);
while (!Serial) {
delay(10);
}
Serial.println("MCP9600 HW test");
/* Initialise the driver with I2C_ADDRESS and the default I2C bus. */
if (! mcp.begin(I2C_ADDRESS)) {
Serial.println("Sensor not found. Check wiring!");
while (1);
}
Serial.println(“Found MCP9600!”);
mcp.setADCresolution(MCP9600_ADCRESOLUTION_18);
Serial.print("ADC resolution set to ");
switch (mcp.getADCresolution()) {
case MCP9600_ADCRESOLUTION_18: Serial.print("18"); break;
case MCP9600_ADCRESOLUTION_16: Serial.print("16"); break;
case MCP9600_ADCRESOLUTION_14: Serial.print("14"); break;
case MCP9600_ADCRESOLUTION_12: Serial.print("12"); break;
}
Serial.println(" bits");
mcp.setThermocoupleType(MCP9600_TYPE_K);
Serial.print("Thermocouple type set to ");
switch (mcp.getThermocoupleType()) {
case MCP9600_TYPE_K: Serial.print("K"); break;
case MCP9600_TYPE_J: Serial.print("J"); break;
case MCP9600_TYPE_T: Serial.print("T"); break;
case MCP9600_TYPE_N: Serial.print("N"); break;
case MCP9600_TYPE_S: Serial.print("S"); break;
case MCP9600_TYPE_E: Serial.print("E"); break;
case MCP9600_TYPE_B: Serial.print("B"); break;
case MCP9600_TYPE_R: Serial.print("R"); break;
}
Serial.println(" type");
mcp.setFilterCoefficient(3);
Serial.print("Filter coefficient value set to: ");
Serial.println(mcp.getFilterCoefficient());
mcp.setAlertTemperature(1, 30);
Serial.print("Alert #1 temperature set to ");
Serial.println(mcp.getAlertTemperature(1));
mcp.configureAlert(1, true, true); // alert 1 enabled, rising temp
mcp.enable(true);
Serial.println(F("------------------------------"));
}
void loop()
{
Serial.print("Hot Junction: "); Serial.println(mcp.readThermocouple());
Serial.print("Cold Junction: "); Serial.println(mcp.readAmbient());
Serial.print(“ADC: “); Serial.print(mcp.readADC() * 2); Serial.println(” uV”);
delay(1000);
}
, so this is legible? When you say from “this” Lib which are you referring to it’s not obvious from my POV? Also what BSP are you using and Have you tried rolling that back? Is it the wire.lib ?
PJ 
You can try the same thing…
Spoiler Alert it compiles too with a XiaoESP32C3 
