Connect the module to the computer using a USB cable. Open a document and click the SPACE button on the card. The effect is the same as 'spacebar'. The document will generate a space. The four arrows on the card correspond to the up, down, left, and right direction keys, the circular plate $PACE corresponds to the spacebar, and I corresponds to the right mouse button. Select the routine and download it to the development board. Click Compile Upload to upload the program to the development board. Note: If you want to return to the original program for Make, you can download the provided Make source program back to the card. Color: As Shown Material: PCB Package Contents: 1 * Alligator Clip Jumper Wire + Standard Controller Board Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.