PlatformIO OSS June Updates: New boards & dev-kits, Espressif ESP-IDF 4.3 & ESP32-C3 SoC, updated Arduino cores for ESP8266 & Microchip SAM

Welcome to the June 2021 updates of the PlatformIO Open Source professional collaborative platform for embedded development. This month we received a lot of helpful feedback from our community, which let us identify the most important parts of our OSS ecosystem that required our attention, so let’s go through the updates pushed in this month. Read more :point_right: