Exploring low power wireless sensor networks with practical everyday things

๐Ÿถ ๐Ÿ— ๐ŸŽ ๐Ÿงบ ๐Ÿ‘œ ๐Ÿ”‹ ๐Ÿ“ฆ ๐Ÿ“ƒ ๐Ÿšช ๐Ÿ’ก ๐Ÿก

Projects created

with open source hardware and software

Oak photo




๐ŸŒณ Measure outdoor distance between 2 keychain holders ๐Ÿ”‘

power 18650
wireless LoRa
sensor GPS
mcu SAMD21G18
bom cost USD $78.93
bom items 82
vendors 6
How to build it
Pine photo



September 2020

๐ŸŒฒ Control aircon by monitoring temperature in other parts of the room ๐ŸŽ

power AA
wireless Infrared
sensor Temperature
mcu SAMD21G18
bom cost USD $9.71
bom items 49
vendors 2
How to build it
Palm photo



July 2019

๐ŸŒด Get alerted on excessive UV radiation with a backpack keychain ๐Ÿ—

power 380mAh LiPo
wireless BLE
sensor UV Index
mcu nRF52
bom cost USD $50.56
bom items 13
vendors 4
battery life 5 days
How to build it
Cactus photo



May 2019

๐ŸŒต Measure humidity in kitchen cupboards to keep food fresh ๐Ÿถ

power 2000mAh LiPo
wireless WiFi
sensor Humidity
mcu ESP8266
bom cost USD $26.00
bom items 36
vendors 5
battery life 1 month
How to build it