¶ Install MicroBlocks Firmware (first time only)
Before using MicroBlocks on the XRP, you must install the MicroBlocks firmware.
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Download the XRP firmware file (vm_pico_xrp.uf2) to your computer.
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Connect the XRP robot to your computer witb a USB cable. While holding down the white BOOTSEL button on the green Pico W board, press and release the reset button (circled below).
The RPI-RP2 USB drive will appear.
- Drag the firmware file vm_pico_xrp.uf2 onto the RPI-RP2 drive. The drive will eject itself when the firmward has installed.
If you use only MicroBlocks, you'll need to install the MicroBlocks firmware only the first time you use it.
If you also use other firmware (e.g. XRP-WPILib) on your XRP, you'll need to reinstall the MicroBlocks firmware before using MicroBlocks again. Fortunately, if you keep the .uf2 files handy, switching between firmwares is quick and easy.
¶ Connect using USB
- Open MicroBlocks in a Chrome or Edge browser.
https://microblocks.fun/run-pilot/microblocks.html
- Click the USB icon, then select connect from the menu.
Select the "Pico W" entry in the USB select dialog, then click Connect.
A green circle will appear when connected.
¶ Add the XRP Library
The XRP library contains commands to control your robot.
- To load the XRP library, first click the "+" next to "Libraries", then select "Robots".
- Select "XRP" and click "Open".
- Make sure your XRP is on, then click on these blocks to make it move and turn:
Tip: You can click on blocks right in the palette to see what they do.
- Drag blocks into the scripting area to assemble scripts. For example, try:
- Use the "save" command in the File menu to save your work, if desired. (MicroBlocks does not save automatically.)
¶ Connect using Bluetooth Low Energy (BLE)
You to can program your XRP wirelessly using Bluetooth Low Energy (BLE). Working without a USB cable allows the robot to move and turn freely. Also, the robot can run on the floor to avoid the risk of running off the edge of the table.
- Open MicroBlocks in a Chrome or Edge browser.
https://microblocks.fun/run-pilot/microblocks.html
- Click the USB icon, then select connect (BLE) from the menu.
- Select your robot in the dialog box, then click Pair.
A green circle will appear when connected.
- (optional) Label your robot.
In a classroom or workshop setting, the BLE connect dialog box may list many XRP robots. Your XRP has a unique three-letter suffix (e.g. "KLS") that can be used to identify it in that list. To prepare for this situation, use a Post-it note or masking tape to label your robot with its three-letter code. To find the code for your robot, connect to it using a USB cable then click the BLE id block in the Input category.
