and another ultrasonic sensor on the inside of the lid for detecting the trash level. On the software side, things are just as straightforward. The code includes two Arduino libraries: one for the ...
The Trash-Bot is powered by an Arduino UNO board (the most expensive of the components at around $27) and uses only two other main components: an ultrasonic sensor and a servo, totaling about $40.
SparkFun has released a new air quality multi-sensor board, the Indoor Air Quality Combo Sensor, which integrates the SCD41 and SEN55 sensors from ...