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Want to communicate without relying on mobile networks? Meshtastic lets you create your own off-the-grid wireless mesh network with an inexpensive LoRa device and an Android phone. ... LoRa chips. However, all technology that the Meshtastic project has built on top of LoRa is open source. Moreover, the LoRa protocol has been reverse-engineered and implemented in a GNU Radio [3

. Then specify the port to which the ESP32 is connected in Connect . Finally, select Upload top right. You will then find a block named when ESP32 starts up in the Blocks section. Figure 2 shows a simple

decided to use an inexpensive Schottky type 15SQ045 diode [1]; this kind of component is often used for reverse polarity protection in solar panels. This diode is quite large and oversized for my