ATB : APRS TELEMETRY BOX []

ATB : APRS TELEMETRY BOX

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ATB : APRS TELEMETRY BOX

AX.25 MODEM

https://unsigned.io/micromodem-diy/

SENSORS

4~20 mA current loop
temperature
humidity
tilt

HUMIDITY

Operating Voltage 3.3V to 5.5V
Humidity measurement range 20% to 90% RH
Humidity measurement accuracy ±5% RH
Humidity measurement resolution 1% RH
Temperature measurement range 0ºC to 50ºC [32ºF to 122ºF]
Temperature measurement accuracy ±2ºC
Temperature measurement resolution 1ºC
Signal transmission range 20m

POWER

30~7VDC in → 5VDC out DC-DC step-down converter

projets/atb/index.1614817352.txt.gz · Dernière modification : 2021/03/04 01:22 de f1sls