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→Testing the sensor
== Testing the sensor ==
== Testing the sensor ==
The Raspberry-Pico offers a 12 bits resolution ADC (effective 8mV resolution. 3.3V/4095).
The Raspberry-Pico offers a 12 bits resolution ADC (effective 0.8mV resolution. 3.3V/4095).
{{ambox|text=The MicroPython ADC expose an unified reading method named {{fname|read_u16()}} returning a 16 bits integer (between 0 and 65535).<br />
{{ambox|text=The MicroPython ADC expose an unified reading method named {{fname|read_u16()}} returning a 16 bits integer (between 0 and 65535).<br />
<syntaxhighlight lang="python">
<syntaxhighlight lang="python">
# Read the TMP36 analog temperature sensor
# sensor wired to ADC0 (GP26)
#
from machine import ADC, Pin
adc = ADC(Pin(26))
while True:
value = adc.read_u16()
mv = 3300.0 * value / 65535
temp = (mv-500)/10
print( 'Temp: %5.2f °C, Voltage: %4i mV' % (temp,mv) )
</syntaxhighlight>
</syntaxhighlight>
Which produce the following results
<nowiki>Temp: 15.19 °C, Voltage: 651 mV
Temp: 14.87 °C, Voltage: 648 mV
Temp: 14.71 °C, Voltage: 647 mV
</nowiki>
{{ENG-CANSAT-PICO-TRAILER}}
{{ENG-CANSAT-PICO-TRAILER}}