Dracula Technologies and e-peas have developed a demonstrator that allows the reading of temperature, humidity, and pressure data and the transmission of this information via the LoRa protocol.
This demonstrator is composed of an 8-band LAYER® module specially designed and produced for this project. The module recharges a CapXX supercapacitor (1.2F – 5.0V) which then powers the E-peas harvester (AEM10941). The latter is used to manage the LoRa chip and the various sensors.
This device is characterized by its very long autonomy: when there is sufficient sunlight (enough power generated by LAYER® to compensate for the consumption of the electronic components), the supercapacitor is recharged, when the sunlight is too low, the energy stored in the capacitor allows transmissions to continue.