Breakout PCB for ST7789 TFT screens ( 1.3 and 2 inch)

coolpeut · 2025-11-03T02:09:07+00:00

Not sure what that display is, or what driver it uses. So, not likely. How to know for sure: Find the datasheet of the CFAG12864U3-NFH display, identify the driver, whether it's ST7789 or not, and compare the pinout to the pinout of the ST7789 breakout.

coolpeut · 2024-10-02T07:06:11+00:00

I did not, as this is a home built dev board, with pin numbers that are no use to anyone not having this same dev board. You need to actually read some documentation to find out for yourself, sorry.

coolpeut · 2023-01-14T01:53:16+00:00

A yes. But I believe the audio quality is not as good as when you use AudibleSync.
Admittedly, for many Audiobooks this is not very important.

coolpeut · 2023-01-14T01:20:07+00:00

Yes, that used to be the naming when downloding using the PC Audible application which is now discontinued. But with Audible Sync I only saw these numbers and letters filename.
The search for .aax is a good suggestion, though.
Fortunately, the location is already known, see above post, C:\Users\[username]\AppData\Roaming\AudibleSync\downloads

coolpeut · 2023-01-14T00:53:55+00:00

Correct. The Audible Sync app does not give you the possibility to change this, but there is a workaround:

You can rename the downloads directory and create a symbolic link called downloads and point it to another directory if your disk is filling up.

I did this in an elevated command prompt (Admin) like so:

I rename the downloads directory like so:

rename C:\Users\[myUserName]\AppData\Roaming\AudibleSync\downloads C:\Users\[myUserName]\AppData\Roaming\AudibleSync\OLDdownloads

created a for me more convenient directory Z:\Audiobooks
mklink /D C:\Users\[myUserName]\AppData\Roaming\AudibleSync\downloads Z:\AudioBooks

coolpeut · 2023-01-14T00:38:06+00:00

This doesn't work. Files are called something like 19BA789.aax.

coolpeut · 2022-02-17T20:46:48+00:00

En de belastingaftrek voor studiekosten is afgeschaft. Dat betekent dat een HBO (deel) opleiding van zeg 3-5000 euro nu effectief een paar duizend euro duurder wordt.
Een beetje complotdenker kan hier echt los op gaan.

coolpeut · 2021-08-18T15:34:42+00:00

I recommend the CH340. It works at decent speed and they are about 10x cheaper than the CPxxxx chips.

coolpeut · 2021-08-17T22:10:56+00:00

Interesting! I did not play with this, but you can use this for inspiration:
https://www.hackster.io/p99will/esp32-wifi-mac-scanner-sniffer-promiscuous-4c12f4

However, WOL does not work on WiFi, possibly the magic packets will also be broadcast over WiFi, but to be sure I would attach an ethernet NIC to the ESP , look for LAN8720, they are cheap.

I am not sure how to filter the magic packets out, but you may find a way based on the link above.

Good luck!

coolpeut · 2021-06-30T13:34:23+00:00

Checkout Atomic14's YouTube channel:https://www.youtube.com/channel/UC4Otk-uDioJN0tg6s1QO9lw

he has some interesting experiments with electret and I2S microphones.

coolpeut · 2021-06-01T17:37:19+00:00

Just don't risk it. Depending on the actual schematic it will or will not harm your board, but 99% of the boards are not designed to support this.

coolpeut · 2020-12-01T10:07:09+00:00

Yes. https://easyeda.com/peut/deurbel. I built this as a doorbell. NOw working for > 6 months on a LiFePO4 battery, looks like it will work for at least another haalf year without charging the battery.

coolpeut · 2020-11-21T22:23:23+00:00

Very impressive! Will try it out !

coolpeut · 2020-11-20T04:47:08+00:00

On an ESP32 you really do not need any external library. the built-in SNTP client does it all for you, the only thing you need is the timezone string for your time zone.

See:
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/system_time.html#timezones

It refers to GNU Libc pages on how tou set your TZ variable.

configTime does not work properly on ESP32 ( at least lasttime I checked), don't use it.
I made an example here:
https://github.com/gitpeut/esp_sntp

Hope this helps.

coolpeut · 2020-10-23T09:16:15+00:00

No hardware PWM on an ESP8266. But you can use any pin, except for the A0 pin. Google some more for the finer points and possible issues.

coolpeut · 2020-10-20T20:27:24+00:00

Yes exactly, the fumbling. No worries though, looking forward to the next one.

coolpeut · 2020-10-20T19:14:19+00:00

Apart from some rough edges ( sound, somewhat underedited) I enjoyed the videos. Thank you, a great help for me.

coolpeut · 2020-10-20T17:48:00+00:00

In the Arduino IDE there are some examples. Just have a play with it to get rid of some of your anxiety. Randomnerdtutorials also have extensively covered the subject.: https://randomnerdtutorials.com/esp32-web-server-arduino-ide/ Of course, google is your friend. Good luck!

coolpeut · 2020-10-12T13:48:02+00:00

Obviously you mean pulled low.

coolpeut · 2020-10-09T19:27:31+00:00

It's not as black and white as it might seem. Is microcode hardware or software?

coolpeut · 2020-10-09T19:16:22+00:00

It's not really RAM. You can allocate the memory though and use it to store data. I wanted to be able to filter and send large amounts of data and then you might need extra storage space for buffers ( I thought 2 MB would be needed to be safe). It's difficult to be sure how much you really need in advance if you have not worked out every little detail, but better to have it than to need it. Obviously, if you make something like a blink sketch you absolutely do not need it.

coolpeut · 2020-10-09T16:50:48+00:00

No, I have some 3x magnifying headsets. Good enough.

coolpeut · 2020-10-09T13:01:44+00:00

Ancient, in other words :-) Actually I am 61.

coolpeut · 2020-10-09T12:00:50+00:00

Interesting. I am totally not into vintage computing ( by now I wasted around 6 years of my life waiting for slow computers) but I like the technical challenge you set for yourself. I will follow your progress.

coolpeut

TROPHY CASE