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RayMing PCB @RaymingTech on x 1768 followers
Created: 2025-07-14 09:32:00 UTC
AQI monitor datalogger system
the device monitors ambient AQI and send data to gateway using RS232/RS485 protocol.
the systems uses X. #STM32 from #STMicroelectronics X. SGP40 from #Sensirion X. MCP7380 from #Microchip Technology Inc. X TLV1117/AMS1117 from Texas Instruments & ams OSRAM X. Cell type lithium #battery for power
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