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--- eolab:projects:microbit_robot:start [2024/05/27 16:54] – [Kitronik Compact 16 Servo Driver Board (PCA9685 I2C PWM driver IC)] rolf.becker
+++ eolab:projects:microbit_robot:start [2024/08/23 18:06] (current) – rolf.becker
@@ Line 1: / Line 1: @@
+~~NOTOC~~
 ====== Micro:Bit Robot ======
+We are using **[[https://makecode.microbit.org|makecode]]** to program the microbits.
+===== Workarounds on Ubuntu =====
+Unfortunately setting up the WebUSB mechanism needed to program the mircobits via USB from Chrome, Chromium or Edge on Linux is causing some trouble.
+  * Shreya's and copilot's howto: {{ :eolab:projects:microbit_robot:microbit_troubleshooting.pdf |}}
+**Download the ''.sh'' (bash script) file below to your ''Downloads'' folder by clicking on the blue title.**
+<file bash prep_microbit_on_ubuntu.sh>
+set -x
+wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
+apt update
+apt install ./google-chrome-stable_current_amd64.deb -y
+apt install google-chrome-stable -y
+echo 'SUBSYSTEM=="usb", ATTR{idVendor}=="0d28", ATTR{idProduct}=="0204", MODE="0666"' > /etc/udev/rules.d/99-microbit.rules
+udevadm control --reload-rules
+udevadm trigger
+</file>
+**Then follow the steps given here:**
+<code>
+cd ~/Downloads
+chmod 755 prep_microbit_on_ubuntu.sh
+sudo ./prep_microbit_on_ubuntu.sh
+</code>
@@ Line 146: / Line 187: @@
 \\
 {{https://www.nxp.com/docs/en/data-sheet/PCA9685.pdf}}
+Adafruit tutorial on PCA9865:
+\\
+https://learn.adafruit.com/16-channel-pwm-servo-driver/overview
 Features: