Search found 6 matches

by walterheisenberg
Sun Feb 10, 2019 4:45 pm
Forum: Programs, Libraries and Tools
Topic: HX711 - which lib should I use?
Replies: 3
Views: 542

Re: HX711 - which lib should I use?

Thank you for the tips. Everything is up and running without SPI for now. What is your opinion about this: Would it be better to replace read() with read_lowpass() in read_average()? I want to get the average value of 3 lowpass filtered readings. Thx Here is another lib with different calculation: h...
by walterheisenberg
Fri Feb 08, 2019 6:19 am
Forum: Programs, Libraries and Tools
Topic: HX711 - which lib should I use?
Replies: 3
Views: 542

HX711 - which lib should I use?

I connected a HX711 to my ESP32 and want to get it running. After searching the net, I found 2 libraries: The official one here : https://github.com/SergeyPiskunov/micropython-hx711 Features: read, on/off, is_ready and another one: https://github.com/HowManyOliversAreThere/hx711_mpy-driver Features:...
by walterheisenberg
Sat Feb 02, 2019 6:11 pm
Forum: ESP32 boards
Topic: Changing the CPU frequency on ESP32
Replies: 4
Views: 1569

Re: Changing the CPU frequency on ESP32

This problem is still existant in v1.1

The CPU freq can't be changed with
machine.freq(80000000)
to 80MHz
by walterheisenberg
Sat Feb 02, 2019 3:18 pm
Forum: ESP32 boards
Topic: How to read from sensors with ULP in deepsleep?
Replies: 1
Views: 278

How to read from sensors with ULP in deepsleep?

I want to run my ESP32-board with a battery. To get more battery life, I wanted to read values from sensors when the device is in deepsleep via the UltraLow Coprocessor.
Is that possible in Micropython without writing assembly code?
by walterheisenberg
Sat Feb 02, 2019 3:13 pm
Forum: Hardware Projects
Topic: Larger fonts on SSD1306 OLED displays
Replies: 9
Views: 6056

Re: Larger fonts on SSD1306 OLED displays

With fresh installation of Micropython 1.1 and fresh downloaded modules, everything is working now Thx for your help BTW: I could test writer_tests.py only after commenting out this line: from writer_gui import Label, Meter There is no writer_gui.py in the repo. Also not in https://github.com/peterh...
by walterheisenberg
Sun Jan 27, 2019 12:03 pm
Forum: Hardware Projects
Topic: Larger fonts on SSD1306 OLED displays
Replies: 9
Views: 6056

Re: Larger fonts on SSD1306 OLED displays

I can't get bigger fonts to work. I (think) have added the correct Pins to ssd1306_setup.py, but it isn't working. I managed to make normal Text and Images (framebuf) work on my OLED. It is a 128x64 px OLED on a Heltec Wifi ESP32 board. Here is the modified code in ssd1306_setup.py --- rstPin = mach...