Search found 10 matches

by hertugen
Mon Jan 29, 2024 2:01 pm
Forum: ESP-IDF
Topic: General discussion about Thread and conserving battery power
Replies: 0
Views: 687

General discussion about Thread and conserving battery power

I'm working with Thread and got it, kind of, working with a C6 acting as border router and several H2's. However, I still try to understand the concept of Thread, regarding the dataflow. I have several, interconnected nodes which needs to be battery operated, but still work as a minimal thread devic...
by hertugen
Sat Jun 17, 2023 8:54 pm
Forum: ESP32 Arduino
Topic: Sharing input/output GPIO without frying anything
Replies: 4
Views: 2659

Re: Sharing input/output GPIO without frying anything

Hello ESP_Sprite I'm not using SENSOR_VP/VN for anything anymore - thank you for pointing that out. Also, yes I'm afraid to have a short circuit, so I might go for for your solution at some point, but I've decided to go for the simple solution without the 5-way joystick and just a simple button, so ...
by hertugen
Fri Jun 16, 2023 6:47 am
Forum: ESP32 Arduino
Topic: Sharing input/output GPIO without frying anything
Replies: 4
Views: 2659

Sharing input/output GPIO without frying anything

Hello experts. Newbie here. I have this little project, which I'm working on - it features an ESP32-WROVER, as well as a e-ink display. It wakes up, updates the screen every hour, then goes back to sleep. http://www.vandret.dk/files/esp32connections.png My problem is that I would like to add an inte...
by hertugen
Sat Jan 21, 2023 12:16 am
Forum: Hardware
Topic: Can't get E-ink display or Wi-Fi to work
Replies: 1
Views: 1136

Can't get E-ink display or Wi-Fi to work

I made a breadboard circuit, using the older NodeMCU ESP32 development board, connected to a Waveshare E-ink display (7-color), which works fine. Afterwards, I made a print and bought some ESP32-S2-WROOM processors, but I'm having some problems with them, as the display won't display anything and Wi...
by hertugen
Tue Dec 13, 2022 7:50 am
Forum: ESP32 Arduino
Topic: Eink-display shows wrong colors
Replies: 3
Views: 2885

Re: Eink-display shows wrong colors

I've dived a bit deeper into this matter. You may be right - however, I discovered that the code, showing the data is run twice. void Eink::showErrorOnScreen(String text) { display.init(); Serial.println("I'm being run once"); display.setTextColor(GxEPD_BLACK); display.setRotation(2); display.setFon...
by hertugen
Fri Dec 09, 2022 11:44 pm
Forum: ESP32 Arduino
Topic: Eink-display shows wrong colors
Replies: 3
Views: 2885

Eink-display shows wrong colors

Hello. I have an ESP32, connected to a Waveshare 5.65" 7-color Eink-display. My problem is that the screen is not always displaying the image/text as intended. If you look at the image below, you can see that it has a very distinct red-like tint and the black appears a tad faded. This issue appears ...
by hertugen
Wed Nov 16, 2022 12:27 am
Forum: ESP32 Arduino
Topic: Hibernation mode while updating eink display
Replies: 1
Views: 1162

Hibernation mode while updating eink display

I have a little ESP32-circuit, that updates an eink display (Waveshare with integrated controllerboard), once and a while. display.init(); display.setTextColor(GxEPD_BLACK); display.setRotation(0); //display.setFullWindow(); display.firstPage(); do { // Set the individual pixels to a color (7 in tot...
by hertugen
Fri Sep 23, 2022 3:50 pm
Forum: General Discussion
Topic: Avoid bricked devices
Replies: 2
Views: 1751

Re: Avoid bricked devices

Wow, I didn't know about ESP-IDF.
Thank you for your help.
by hertugen
Thu Sep 22, 2022 6:41 am
Forum: General Discussion
Topic: Avoid bricked devices
Replies: 2
Views: 1751

Avoid bricked devices

Hello ESP32 experts. I’m working on a battery-powered device for monitoring some simple peripherals, display status on a tiny e-ink display and send/retrieve data using Wi-Fi. However, I would like the device to be updateable, in case there are bugs and updates for new devices and functionality. I r...
by hertugen
Thu Jan 06, 2022 10:42 am
Forum: ESP32 Arduino
Topic: Serial2, transmit-problems
Replies: 0
Views: 3913

Serial2, transmit-problems

Hello experts. I have an ESP32-S2 and an external unit, which is wired up to Serial2 (pin 16/17 and CTS on pin 8). The external unit can be accessed using a built-in USB->UART controller and I can open a terminal and submit HEX-commands, manually. Now, I disconnect the USB and cun all communication ...