The aim of this pcb is to offer an easy way to build a reliable and compact battery powered multi-sensor based on MySensors, an ATMega328P (Arduino) and a RFM69 or NRF24 radio module.
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- BT-Pcb-328 Front
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- BT-Pcb-328P Rear
Features
The main features of the pcb are:
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Small dimensions: 57 x 57 mm
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Multiple power options: 2 x AAA batteries (Rechargeable or Alkaline), 1 x CR2032 battery or standard cellphone charger at 5V through the micro USB port
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Reverse polarity protection (Mosfet Q1) to prevent damages in case of wrong batteries insertion.
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Boost converter (ME2188C33) to increase the battery voltage to 3.3V when necessary
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LEDs for radio traffic, low batteries and motion detection signaling. All configurable in the firmware.
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Multiple radio module supported: NRF24L01 (SMD and THT) and RFM69.
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Socket for the Si7021 Temperature and Humidity.
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Socket for the AS312 Pir motion sensor with mounting holes for a standard Fresnel lens like the one used in the HC-SR501 motion sensor.
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Socket and circuit for a photoresistor to measure the light level
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MYSX connector v.2.6
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Additional PIN to power the board (J6)
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FTDI and ICSP headers to program the MCU
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Support for ATSHA204 chip (security and signing)
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Mounting hole for a M2.5 screw
Downloads
You can download the Gerber files and have ten of this pcb for about 5€, with an online pcb manufacturer like JLCPCB or PCB way.
Know more…
Visit this page of the d-diot wiki to know more about the pcb and its BOM.
