Quantity   Component name
1 × LoPy4 Pycom's LoPy4 development board offers 4 wireless communication modes: LoRa, Sigfox, WiFi & Bluetooth. The board is programmed using MicroPython and is compatible with any of the Pycom shields.
1 × PyonAir PCB A custom PCB designed for this project, which can be purchased pre-populated from Seeed Studio.
1 × TSRN 1-2450 Voltage Regulator The voltage regulator used on our PyonAir PCB is the TSRN 1-2450 step-down switching regulator. This regulator provides the circuit with a steady 5 V supply with a wide range of input voltages (6.5 V - 42 V).
1 × MicroSD Card Any standard MicroSD card should work with our air pollution monitor. Of course, larger cards will allow you to store more readings, which might be helpful if you want to add more sensors or record data more frequently.
1 × FTDI Cable This is used to program the LoPy4 and for debugging.
1 × Power Supply Our Grove socket PCB design includes 3 different power input options: DC barrel jack (2.1 mm), JST/LiPo or screw terminal. The onboard voltage regulator can convert any input voltage from 6.5 V - 32 V to 5 V. We recommend choosing a power supply that can provide 1 A or more.
1 × Waterproof Enclosure A waterproof enclosure of your choice. This may need to be modified to add air inlets for the PM sensors.
1 × Plantower PMS5003 The PMS5003 sensor senses particulates of various sizes (PM1 - PM10) from sources like smoke, dust, and pollen.
1 × Sensirion SPS30 A second PM sensor, with slightly more advanced features than the Plantower.
1 × SHT35 Temperature & Humidity Sensor A grove-compatible temperature & humidity sensor from Seeed Studio.
1 × Grove Real Time Clock The DS1307 RTC module contains a clock chip with backup power from a cell battery. This means it is able to keep track of time even when the primary power supply cuts out.
1 × GPS Receiver Module This Grove - GPS module uses a SIM28 and serial communication configuration. It features 22 tracking / 66 acquisition channel GPS receiver. The sensitivity of tracking and acquisition both reach up to -160dBm.
1 × Pycom Antenna External LoRa antenna for use with the LoPy4. Be sure to purchase an antenna with the correct frequency for your region.