FIRST OTP BASED ON M5StickC
Become a patron on PATREON.COM/IMSHOX.
The M5StickC is a compact device with screen, battery and RTC build in with a cheap price.
Less than 10 dollar M5StickC will make huge difference in quality/price with others OTPs
Check how the flash it's done in this section , HOW to flash M5StickC
This software is licensed under the MIT License, to read the full license HERE.