MicroPython Forum

Can you load the firmware?
Do you get a REPL prompt at the USB/Serial interface?

SPI itself is sufficiently fast. for your device you have to send ~300k bits for a full screen. At 10MHz SPI that takes about 30 ms. Micropython is slow. I do not know how you have set up your code, but if you write single pixels than you have a lot of overhead. It get's faster if you write larger p...

uart.read() is non blocking, and uart.write() is buffered. That means that the call to uart.write() returns before the data has been sent. At that very moment no data has been reecived yet, and uart.read() returns with None. Sending 2 bytes at 9600 takes 2 ms. So wehat can you do: a) wait 2 ms befor...

Better save your code before updating, even when replacing the uf2 should not affect the file system.
There was a change in the USB handling recently, leading to more reliable registering of the device. So it might be worth trying the update.

Which firmware version is installed on the Pico?

Add the line

global sendung

Into int_handler() at the top.

Btree is included now. You should have it in the daily build tomorrow.

after 'wlan.connect('ssid', 'password')' the connection does not happen immediately. You have to wait until the device is connected, checking with wlan.isconnected(). You can set the ip address before calling wlan.connect(). Then that one is used right from the start. P.S.: That's the script I use a...

The btree module is about to be included again for the ESP32. Damien is working on it.

Update the Firmware to the newest daily build. The read() is non-blocking.