MicroPython Forum (Archive)

@greatfulfrog @dhylands @ pythoncoder Thanks for the comments. I have edited the typos and added an extra bit about GND planes and some clarification. moral of the story - don't type in front of Netfix, don't type after midnight and don't trust orto korekt. Part of the motivation for writing this is...

Hi Bob, @roberthh and @pythoncoder give good advice about grounding and using a star ground. This is not always enough. It helps to understand all the ways noise can get into sensitive circuits. I do a lot of mixed signal design and I will explain how I analyse noise sources and optimise PCB layouts...

I use the Microchip MCP series DIP CAN transceivers regularly with STM32. They are a 5V device but fully compatible with 5V tolerant 3.3V MCU's. No level translator is required. The transmitter input requires <0.8V and >2V for logic 0 and 1 respectively which the STM32 can do. The receiver output gi...

A good test would be to run the Pyboards off 3 or 4 Alkaline cells (4.5V - 6V). If the analog results are good for both boards your power supply is noisy. Pybv1.1 requires slightly higher voltage on Vin and may be more susceptible to switching spikes from a switch mode power supply. The changes to t...

The multiple PWR & GND pins are for convenience of connecting multiple things to the board. These include: - two half size skins, eg AMP and LCD, - as Dave said; four hobby servo motors, - four analog inputs with their own quiet GND pin, - main power from battery or power supply, - backup battery fo...

I always use Saferinse after Safewash when I do aqueous cleaning and haven't had any residue problems. Alternatively I have found hot water rinsing and compressed air drying works well. It depends on how good your tap water is.
.

I believe you can't derive the 48MHz USB clock when you set the PLL to 100 MHz

Congratulations, you made the top 25 on Kicktraq today You deserve it for all the hard work you put into MicroPython.

I guess I am most interested specifically in the STM32F446RET6 The F446 does not have PB11. It requires another cap in the pin for the core voltage regulator. The F411 is the same. Hence you might find it easier to modify pyblite which uses F411. You will loose I2C from pins Y9 and Y10 because the ...

MTP does not allow file editing, only transfer or open read only. Verified with Android 4 and Windows Phone 8 connected to WIN7 and WIN8. Differences between MSC (memory stick) and MTP (phone) under Windows. 1. Phone does not mount with a drive letter. 2. Windows explorer does not have "New --> Text...