Hi All Seedstudio got in touch, they would give us some free dev boards if anyone fancied porting disaster radio to their Cortex M4? I don't know much about them. Would they be more power efficent than the ESP32? Let me know if you'd like to attempt the port. Thanks Sam ​Hi Samuk, Thank you for your reply and interested in lora. I'm really impressed and fascinated by your project ''Disaster Radio - LoRa Mesh​'' posted on Hackday and i also saw the video you posted on youtube, it has important implications for our human society.​ ​ Actually, the new LoRa-E5 (STM32WLE5JC) series is completely different from what's on the market. It's much more powerful and with a low-cost, ultra-low power, extremely compact, and high-performance LoRaWAN module and also development boards. Link here: HTTPS://WWW.SEEEDSTUDIO.COM/CATALOGSEARCH/RESULT/?Q=LORA+E5 ​   The requires for Sample Test :​ 1) COULD YOU PLEASE TELL ME WHICH DEVICES OF LORA E5 YOU WILL CHOOSE AND WHAT KIND OF PROJECTS YOU WILL USE THEM IN? (The project would be better explained in detail, which is also convenient for us to reach an ea​rly cooperation. Thank you for your time :)​ 2) When the project is finished, will you posted on hackday or ther platform and if possible i wanna know how long will it take you to finish this project?   ​​​After the project is delivered, our official Twitter and Facebook will also promote your project and forward it, bringing more value and possibility to it.​  Since we announced the module, there are a lot positive feedbacks from the community, and I believe LoRa E5 series will help a lot to your audience who are interested in long range communication projects. We are very honored to meet such creative and influential people as you to cooperate!​ ​​Look forward to hearing from you soon and have a nice day. :) ​ Best Regards, Amanda Overseas Marketing Department ​ Seeed Technology Co., Ltd