[mithro]

Buy a 100 pack, then they are only $9.05 each, which while still more expensive than the ESP8266s (at ~$7.00) is getting closer. The devices from CrowdSupply all ship with nice injection moulded cases.

You are also quite welcome (and encouraged) to build your own!

The schematics, PCB and even case design are open source. The board is designed with 6mil/6mil design rules making it compatible with everything like OHS Park, Seeed, or Dirty PCBs (all of them have been previously tested). The Tomu being so small with the Dirty PCB protopack would get you like ~75-125 boards for like ~$25 USD. All the other parts are available from Digikey too.

The idea is to be an open source, cheap and hackable replacement for an Yubikey Nano style devices (and hopefully in response they will price their devices more reasonably than the >$50 USD it costs now).

It would be awesome for Chinese manufacturers to take the design as is and make cheaper clones.

We have a policy of sending anyone who sends the project pull requests free Tomu boards.

[inteleng]

Suggesting someone waste $870 by buying 100x as many as they need is not helpful. Your numbers for the ESP are wrong - I can get one for less than $2. https://www.aliexpress.com/item/Free-shipping-ESP8266-serial...

[gmiller123456]

Yea, even the ESP32 on a more user friendly package like NodeMCU or WeMos are still under $5. So he appears to really be downplaying the markup.

[mithro]

If you think you can do better, please do! I will be sure to buy plenty when you deliver your cheaper version.