diff --git a/lib/max31856/max31856.c b/lib/max31856/max31856.c
--- a/lib/max31856/max31856.c
+++ b/lib/max31856/max31856.c
@@ -25,64 +25,64 @@ static void __read_reg(uint8_t reg, uint
 // Initialize the MAX31856 driver
 void max31856_init(SPI_HandleTypeDef* spi_port, GPIO_TypeDef* cs_port, uint32_t cs_pin, uint32_t sensor_type)
 {
-	// Set CS pin references
-	csport = cs_port;
-	cspin = cs_pin;
+    // Set CS pin references
+    csport = cs_port;
+    cspin = cs_pin;
 
-	// Set SPI port reference
-	spiport = spi_port;
+    // Set SPI port reference
+    spiport = spi_port;
 
-	// Configure the CS pin for output
-	GPIO_InitTypeDef GPIO_InitStruct;
-	GPIO_InitStruct.Pin = cs_pin;
-	GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
-	GPIO_InitStruct.Pull = GPIO_NOPULL;
-	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
-	HAL_GPIO_Init(cs_port, &GPIO_InitStruct);
+    // Configure the CS pin for output
+    GPIO_InitTypeDef GPIO_InitStruct;
+    GPIO_InitStruct.Pin = cs_pin;
+    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    HAL_GPIO_Init(cs_port, &GPIO_InitStruct);
 
-	// MAX31856
-	// - set to continuous conversion mode
-	// - probably no filtering, we'll do that on this side of things
-	// - set up to read the typical open/short faults but not the high/low alarms
+    // MAX31856
+    // - set to continuous conversion mode
+    // - probably no filtering, we'll do that on this side of things
+    // - set up to read the typical open/short faults but not the high/low alarms
 
 
-	// TODO: Enable open/short detection
-	// Enables auto conv
-	__write_reg(MAX31856_CR0_REG, MAX31856_CR0_AUTOCONVERT); //  MAX31856_CR0_OCFAULT0
+    // TODO: Enable open/short detection
+    // Enables auto conv
+    __write_reg(MAX31856_CR0_REG, MAX31856_CR0_AUTOCONVERT); //  MAX31856_CR0_OCFAULT0
 
-	// Averaging set to 1 sample, TC type set to K
-	__write_reg(MAX31856_CR1_REG, MAX31856_TCTYPE_K);
+    // Averaging set to 1 sample, TC type set to K
+    __write_reg(MAX31856_CR1_REG, MAX31856_TCTYPE_K);
 
-	// sensor type - could we just mask bits off? maybe optimize the enum for this
+    // sensor type - could we just mask bits off? maybe optimize the enum for this
 }
 
 
 // Pull reading from the MAX31856 IC
 float max31856_process(void)
 {
-	uint8_t tempbuf[3];
-	__read_reg(MAX31856_LTCBH_REG, tempbuf, 3);
+    uint8_t tempbuf[3];
+    __read_reg(MAX31856_LTCBH_REG, tempbuf, 3);
 
 
-	volatile int32_t temp24 = tempbuf[0] << 16 | tempbuf[1] << 8 | tempbuf[2];
-	if (temp24 & 0x800000) {
-		temp24 |= 0xFF000000;  // fix sign
-	}
+    volatile int32_t temp24 = tempbuf[0] << 16 | tempbuf[1] << 8 | tempbuf[2];
+    if (temp24 & 0x800000) {
+        temp24 |= 0xFF000000;  // fix sign
+    }
 
-	temp24 >>= 5;  // bottom 5 bits are unused
+    temp24 >>= 5;  // bottom 5 bits are unused
 
-	float tempfloat = temp24;
-	tempfloat *= 0.0078125;
+    float tempfloat = temp24;
+    tempfloat *= 0.0078125;
 
-	temp_latest = tempfloat;
-	return tempfloat;
+    temp_latest = tempfloat;
+    return tempfloat;
 
 
 
 
-	// Read temperature from the MAX31856 (approx 10hz optimally)
-//	uint8_t data[] = {0,0,0,0};
-//	HAL_SPI_Transmit(spiport, data, 1, 100);
+    // Read temperature from the MAX31856 (approx 10hz optimally)
+    //	uint8_t data[] = {0,0,0,0};
+    //	HAL_SPI_Transmit(spiport, data, 1, 100);
 
 }
 
@@ -90,66 +90,66 @@ float max31856_process(void)
 // Return latest temperature reading (unaveraged, deg C)
 float max31856_latest_temp(void)
 {
-	return temp_latest;
+    return temp_latest;
 }
 
 
 // Return average temperature reading (deg C)
 float max31856_avg_temp(void)
 {
-	return temp_latest;
+    return temp_latest;
 }
 
 
 static void __write_reg(uint8_t reg, uint8_t data)
 {
-	// Set write bit
-	reg |= MAX31856_WRITE_BIT;
+    // Set write bit
+    reg |= MAX31856_WRITE_BIT;
 
-	uint8_t outarr[2] = {reg, data};
-	uint8_t dummyrx[2];
+    uint8_t outarr[2] = {reg, data};
+    uint8_t dummyrx[2];
 
-	// Assert the bus
-	__cs_assert();
+    // Assert the bus
+    __cs_assert();
 
 
-	// Write data
-	volatile HAL_StatusTypeDef res = HAL_SPI_TransmitReceive(spiport, outarr, dummyrx, 2, 100);
+    // Write data
+    volatile HAL_StatusTypeDef res = HAL_SPI_TransmitReceive(spiport, outarr, dummyrx, 2, 100);
 
 
-	// Release the bus
-	__cs_deassert();
+    // Release the bus
+    __cs_deassert();
 }
 
 static void __read_reg(uint8_t reg, uint8_t* rxbuf, uint8_t len)
 {
-	// Transmit buffer only uses first item for reg addr
-	uint8_t regarr[1];
-	regarr[0] = reg;
+    // Transmit buffer only uses first item for reg addr
+    uint8_t regarr[1];
+    regarr[0] = reg;
 
-	uint8_t dummyrx[12] = {0};
-	uint8_t dummytx[12] = {0};
+    uint8_t dummyrx[12] = {0};
+    uint8_t dummytx[12] = {0};
 
-	// Assert the bus
-	__cs_assert();
+    // Assert the bus
+    __cs_assert();
 
-	// Send address
-	HAL_SPI_TransmitReceive(spiport, regarr, dummyrx, 1, 100);
+    // Send address
+    HAL_SPI_TransmitReceive(spiport, regarr, dummyrx, 1, 100);
 
-	// Receive data
-	HAL_SPI_TransmitReceive(spiport, dummytx, rxbuf, len, 100);
+    // Receive data
+    HAL_SPI_TransmitReceive(spiport, dummytx, rxbuf, len, 100);
 
-	// Release bus
-	__cs_deassert();
+    // Release bus
+    __cs_deassert();
 
 }
 
 static void __cs_assert(void)
 {
-	HAL_GPIO_WritePin(csport, cspin, 0);
+    HAL_GPIO_WritePin(csport, cspin, 0);
 }
 
 static void __cs_deassert(void)
 {
-	HAL_GPIO_WritePin(csport, cspin, 1);
+    HAL_GPIO_WritePin(csport, cspin, 1);
 }