ell-i/ell-i-kicad-boards

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SPI communication not working. Set chip select pin as OUTPUT

I'm currently using an Adafruit Feather 32u4 with the TYSY01 sensor and I was unable retrieve data over the SPI protocol. I'm able to correctly communicate and read data from the TYSY01 sensor over I2C, however, I'm receiving incorrect data over SPI.

I'm using version 1.8.10 of the Arduino IDE with the code provided by this Instructables guide. My code is as follows:

#include "Tsys01.h"

#define chipSelectPin 18
#define powerPin 20
#define protocolPin 19

Tsys01 sensor;
float temperature = 0.0;

void setup(void)
{
  while(!Serial);
  Serial.begin(9600);
  Serial.println("Starting program.");
  sensor = Tsys01(TSYS01_SPI, powerPin, chipSelectPin, protocolPin);
}

void loop(void)
{
    sensor.startAdc();

    //ADC takes 9.22 ms.
    delay(10);
    temperature = sensor.readTemperature();
 
    Serial.print("Temperature is ");
    Serial.println(temperature);  
}