Review on 🔌 Teensy 4.1 Board (No Pins) by Cori Nance

Loaded with Raspberry Pi power with limited Arduino control. If you want maximum control over your contacts, timing, clock cycles, reliable storage, battery and more, this is the board for you. It also has an inexpensive $8 ethernet port, so for $40 you get one of the highest performing 32-bit Arduino compatible boards that has a fixed ethernet connection, an SD card, and a real-time clock with little up to no effort supported. The only downside is that there is no easy remote firmware upgrade option if you want to deploy it for IoT applications.