Data Sheet
0X5C – Get thermistor temperature returns 2 bytes
Returns two bytes containing the onboard thermistor temperature. Each bit is 0.0625°C, signage in bit 3 of the high
byte
Byte 0
Thermistor low byte
T7 T6 T5 T4 T3 T2 T1 T0
Byte 1
Thermistor high byte
x x x x +/- T10 T9 T8
Temperature Binary number HEX number
+125℃ 0111_1101_0000 0x7D0
+25℃ 0001_1001_0000 0x190
+0.25℃ 0000_0000_0100 0x004
0℃ 0000_0000_0000 0x000
-0.25℃ 1000_0000_0100 0x804
-20℃ 1001_0100_0000 0x940
0X5D – Get thermopile temperatures returns 128 bytes
Returns 128 bytes containing 64 temperatures returned from the thermopile array. Data is in 2’s compliment
form Each bit is 0.25°C, signage in bit 3 of the high byte
Byte x (0 to 126)
Thermopile cell low byte
T7 T6 T5 T4 T3 T2 T1 T0
Byte x+1 (1 to 127)
Thermopile cell high byte
x x x x +/- T10 T9 T8
Temperature Binary number HEX number
+125℃ 0001_1111_0100 0x1F4
+25℃ 0000_0110_0100 0x064
+0.25℃ 0000_0000_0001 0x001
0℃ 0000_0000_0000 0x000
-0.25℃ 1111_1111_1111 0xFFF
-25℃ 1111_1001_1100 0xF9C
-55℃ 1111_0010_0100 0xF24
© Devantech Ltd 22/08/18 USB-TPA64 Documentation 3/3