At IoT – exploration of LoRaWAN – part 2 I reported some quality issues with two low cost SAMD21 Arduino Zero like boards, and at Arduino SAMD21 bootloader protection some related discussion.
In view of continuing experience of incorrectly programmed low cost SAMD21 boards, I have decided to re-flash them as a matter of course
Above is one of the culprit boards. Continue reading Arduino SAMD21 bootloader protection II