Search found 30 matches
- Wed Feb 03, 2021 11:19 pm
- Forum: General discussion
- Topic: TJA1050 CAN bus library
- Replies: 2
- Views: 5639
Re: TJA1050 CAN bus library
There are many STM32F103 CAN Bus libraries on github. Do a search and pick your favorite
- Wed Jan 27, 2021 10:12 pm
- Forum: General discussion
- Topic: program modification
- Replies: 19
- Views: 10876
Re: program modification
I had a 128x64 OLED connected to PB10 / PB11 and the scanner displayed:
I2C device found at address 0x3C
If your STM32F103 board has a green LED, it is not the same one I have and that may explain your results.
I2C device found at address 0x3C
If your STM32F103 board has a green LED, it is not the same one I have and that may explain your results.
- Wed Jan 27, 2021 8:28 pm
- Forum: Off topic
- Topic: No one even mentioned the new Raspberry Pi Pico?
- Replies: 79
- Views: 1741518
Re: No one even mentioned the new Raspberry Pi Pico?
^^ Interesting... Thanks for taking the time to put this together.
- Wed Jan 27, 2021 8:25 pm
- Forum: General discussion
- Topic: program modification
- Replies: 19
- Views: 10876
Re: program modification
Here is an I2C scanner for the second I2C bus. I have verified its function on my STM32F103 using I2C #2. // -------------------------------------- // i2c_scanner // // Version 1 // This program (or code that looks like it) // can be found in many places. // For example on the Arduino.cc forum. // T...
- Wed Jan 27, 2021 3:17 pm
- Forum: General discussion
- Topic: program modification
- Replies: 19
- Views: 10876
Re: program modification
What do you want to do?
Scan the second I2C bus, or use the second I2C bus?
The code above is a jumble of setting up the second I2C bus and scanning the first I2C bus.
Scan the second I2C bus, or use the second I2C bus?
The code above is a jumble of setting up the second I2C bus and scanning the first I2C bus.
- Wed Jan 27, 2021 2:03 pm
- Forum: General discussion
- Topic: program modification
- Replies: 19
- Views: 10876
Re: program modification
The number of connections/wires needed is determined by the OLED display. The Adafruit ones have a dedicated connection for reset, (and may also have optional SPI) BUT the cheaper ones don't. I am using one of the cheaper ones and it has 4 connections: ground, Vcc, SCL and SDA. When you asked for a ...
- Wed Jan 27, 2021 1:57 pm
- Forum: General discussion
- Topic: [Solved] I2C OLED Only Displays if Reset is Pressed??
- Replies: 9
- Views: 6699
Re: [Solved] I2C OLED Only Displays if Reset is Pressed??
The number of connections/wires needed is determined by the OLED display. The Adafruit ones have a dedicated connection for reset, (and may also have optional SPI) BUT the cheaper ones don't. I am using one of the cheaper ones and it has 4 connections: ground, Vcc, SCL and SDA. When you asked for a ...
- Wed Jan 27, 2021 1:25 pm
- Forum: Off topic
- Topic: No one even mentioned the new Raspberry Pi Pico?
- Replies: 79
- Views: 1741518
Re: No one even mentioned the new Raspberry Pi Pico?
I look forward to seeing the performance comparison between the Pico, Uno/Nano, STM32F1, STM32F4, ESP 8266 and the ESP32.
- Thu Jan 21, 2021 11:26 pm
- Forum: General discussion
- Topic: [Solved] Can I use SPI2 with Uno/Nano Library that uses SPI?
- Replies: 11
- Views: 7231
Re: [Solved] Can I use SPI2 with Uno/Nano Library that uses SPI?
I have resolved the errors and will post what I did in a new thread.
I think it may be useful to others see one method to how to get an Arduino library that uses SPI.something working on the STM32F1 SPI2 5 volt tolerant bus.
Once I have done the post, I will add the link here.
I think it may be useful to others see one method to how to get an Arduino library that uses SPI.something working on the STM32F1 SPI2 5 volt tolerant bus.
Once I have done the post, I will add the link here.
- Thu Jan 21, 2021 7:38 pm
- Forum: General discussion
- Topic: [Solved] Can I use SPI2 with Uno/Nano Library that uses SPI?
- Replies: 11
- Views: 7231
Re: [Solved] Can I use SPI2 with Uno/Nano Library that uses SPI?
Hi, When you say it worked on 5-6 programs , I assume you mean the board accepted 5 - different .bin files and flashed them and they booted (be it blink or what ever) but when you upload your code it wont function, I assume then yes there is a conflict, i would start by putting serial.print right a...