ESP8266-01 in-circuit firmware updater for the ZX Spectrum Next™.
The ESPUPDATE dot command is still in pre-alpha development. I recommend not running it on your Spectrum Next yet, unless I ask you to help test. The ESP-01 can never be bricked, but you might end up in a situation where you have to re-update it on your PC with a USB adaptor or breadboard, and the python program. No big deal, but just be aware :)
ESP Update is copyright © 2020 Robin Verhagen-Guest, and is licensed under Apache-2.0.
hdfmonkey is copyright © Matt Westcott 2010, and is licensed under GPL-3.0.
ZX Spectrum Next is a trademark of SpecNext Ltd.