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Developer Paul Worth has put collectively a compact board, which mixes a passive infrared (PIR) movement sensor with an on-board Espressif ESP32 RISC-V microcontroller: the Arduino-compatible Bee Movement Mini.
“I designed this board as a result of i needed to set off varied issues from movement,” Worth explains of his creation, “however needed the sensor itself to be as small as attainable. This enables the sensor to be positioned in a small 3D printed case and positioned/hidden anyplace you need.”
The Bee Movement Mini is constructed round an ESP32-C3 module, providing a single 32-bit RISC-V processor core operating at as much as 160MHz alongside Wi-Fi and Bluetooth 5.0 Low Power (BLE) connectivity — the latter providing assist for Bluetooth Lengthy Vary (LR) and mesh operation. Alongside this, Worth has added a compact passive infrared (PIR) sensor with dome lens — plus a JST connector for battery energy.
The Bee Movement Mini presents a compact, battery-powered PIR sensor with Wi-Fi and Bluetooth connectivity. (📷: Bee Merchandise)
To maintain each measurement and price down, although, there are a couple of options you will not discover on the Bee Movement Mini. The primary is USB: Energy may be equipped by way of the JST connector or an unpopulated pin header to the facet, which additionally serves because the programming port. There’s additionally no entry to any of the module’s spare general-purpose enter/output (GPIO) pins.
The Bee Movement Mini is obtainable to order from the Bee Merchandise Tindie retailer at $15, whereas an instance Arduino sketch has been revealed to GitHub underneath the permissive MIT license.
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