Hi!
I'm looking to hook a thermal printer[1] up to the internet so it can print out some simple* POST requests. The HUZZAH[2] seems like a cheap and simple way to achieve this, but I'm wondering if I'll need any extra hardware** to get the job done.
Thanks!
* I only need to print text, nothing too fancy. The ability to print images would be a sweet bonus, though :)
** Apart from this power supply[3], a DC adapter[4], and some thermal paper[5].
[1]: https://www.adafruit.com/products/2752
[2]: https://www.adafruit.com/products/2471
[3]: https://www.adafruit.com/products/276
[4]: https://www.adafruit.com/products/368
[5]: https://www.adafruit.com/products/2755
ESP8266 HUZZAH + Thermal Printer?
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- adafruit_support_mike
- Posts: 67454
- Joined: Thu Feb 11, 2010 2:51 pm
Re: ESP8266 HUZZAH + Thermal Printer?
You'll probably want a 74AHCT125 to convert the ESP8266's 3.3v signals to 5v signals the printer prefers: https://www.adafruit.com/products/1787
You really don't need to connect the printer's TX pin back to the ESP8266's RX pin, but if you do, make sure you use a level shifter that way too.. 5v to 3.3v.
You really don't need to connect the printer's TX pin back to the ESP8266's RX pin, but if you do, make sure you use a level shifter that way too.. 5v to 3.3v.
Please be positive and constructive with your questions and comments.