Traumflug

> LED on time minimum: 22 clock cycles. This smells like something going wrong. 22 clocks isn't sufficient to do something meaningful. And the second picture shows a velocity spike...

True, a valuable contribution. The Configtool part looks good. To get the remaining part working for multiaxis movements, one has to calculate acceleration duration for each participating axis and take...

You're probably the first to try the combination of I2C bus and HD44780 display. Code is designed to allow this combination, but so far nobody tried. For development we had...

Sure enough, a parallel bus needs more pins. But that's what most people have in hardware and Teacup should work on any hardware. Accordingly the strategy choosen is to have...

> I want to enable the INPUT_PULLUP resistor for reading the thermistor properly, otherwise it reads 0 or 1023. Are you sure your circuitry is working properly? Pullup resistors can...

> Doesn't using the internal pull-up essentially accomplish the same thing as an external resistor? Yes. But it's an analog signal, so it's essential to have not any, but a...

A few smaller improvements done in-place, please pull this branch again.

Thanks for testing. I see no other chance than to comment out the new code (in sd.c and pff*.c) partially to narrow down what blocks the serial port. If the...

At least some progress. (Always think positive) Here's the corresponding section from the Arduino library, Sd2Card.cpp: ``` C static void spiSend(uint8_t b) { SPDR = b; while (!(SPSR & (1

At least to my understanding, SPI shouldn't block even with no card being present at all and select pin misconfigured. You simply read all zeros, then.