PCB design stm32 + sim800
Budget: $30 – $250 USD
PCB based on stm32 MCU and sim800 gsm module
PCB interact with 3 sensors
1. First Sensor is reed relay for wake up MCU and GSM module and rest of sensors
2. Second sensor is pressure sensor (12 V , 4-20 ma ), which have 2 wires and is powered by booster device which have en pin ( so booster is sleep in normall time).
3. Third sensor is temperature sensor like PT100 or PT1000 , which also need to read . also need to have sleep function
During sleep function only MCU work in low power mode, rest of board must be cut-of
Device is powered by 2 er18505 which is connected to PCB in parallel so in PCb must add 2 diodes
Project consist of schematics and pcb layout , gerber etc… all must be done based on JLCPCB stocks .
PCB must be inside of red lines of attachment cad file
PCB interact with 3 sensors
1. First Sensor is reed relay for wake up MCU and GSM module and rest of sensors
2. Second sensor is pressure sensor (12 V , 4-20 ma ), which have 2 wires and is powered by booster device which have en pin ( so booster is sleep in normall time).
3. Third sensor is temperature sensor like PT100 or PT1000 , which also need to read . also need to have sleep function
During sleep function only MCU work in low power mode, rest of board must be cut-of
Device is powered by 2 er18505 which is connected to PCB in parallel so in PCb must add 2 diodes
Project consist of schematics and pcb layout , gerber etc… all must be done based on JLCPCB stocks .
PCB must be inside of red lines of attachment cad file
Related categories:
STM32