Building Low-Power Environmental Node
Reviews
Rubber Red R2-D2
Properties
Cellular, UART, I2C
On-board (production), Off-board (development variant)
40
Automotive
60
Production, Development
20mm diameter centered at SIM7600E-H antenna feed
graph LR Power[Automotive Power Subsystem] -->|5V Buck / 3.3V LDO| MCU[Arduino Nano MCU] Power -->|3.8–4.0V Rail| SIM[SIM7600E-H Module] MCU -->|I2C| IMU[MPU-6050 IMU] MCU -->|INT| Piezo[Piezo Sensor Front-End] MCU -->|UART| SIM MCU -->|UART| PiUART[Pi UART Header] MCU --> JTAG[JTAG/SWD Header] MCU --> LEDs[LED Indicators] MCU --> BZR[Buzzer] MCU --> EXP[Expansion Headers] USB[Micro-USB Programming Connector] --> MCU Power --> Piezo Power --> TP[Testpoints] MCU --> TP SIM --> TP
20 mm radius around RF feed area (SIM7600E-H module)
Arduino Nano Compatible
Board zones: Power domain (left side), RF domain (centered around SIM7600E-H, 20 mm keepout), Analog domain (bottom right). Partitioning supports layout isolation of power switching, analog front-ends, and sensitive RF paths.
90
None (production), Off-board testpoint components on EXP1/EXP2 (development variant)
8
Automotive
2-layer, 1.6 mm; 8 mil/8 mil clearance; 40 mil power traces
1.6 mm
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $23.75–$34.10 |
Digi-Key | $84.94–$87.72 |
LCSC | $75.10–$75.90 |
Mouser | $37.35 |
TME | $3.60 |
Verical | $22.78–$49.56 |
Controls
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