Individually prepare the components :

• Solder 2*6 headers on the ADAFRUIT QTPY RP2040 (pins A1--TX and RX--GND)

• Solder 2 headers on the 3.5mm jack breakout (pin TIP ans SLEEVE)

• Cut two platsic pins under the tactile switch, cut two pins on the switch

• Cut two wires : 3.5cm and 4cm

Solder the components :

• Solder the ADAFRUIT QTPY RP2040 on the protoboard : B1 to B6 and F1 to F6)

• Solder the tactile switch on the protoboard G1 and G3

• Solder the 3.5mm jack breakout (F11 and E11)

• Connect A3 QTPY's pin to RING02 with the 3.5 cm wire, solder

• Connect GND QTPY's to TIP with the 4cm wire, (J1- J11), solder

Cut of the excess lenght of the pins

• Insert the electronic onto the base part

• Snap the two parts of the enclosure

• While maintain the boot button pressed, plug the QTPY RP2040 in a computer with a USB C CABLE

• A drive name RPI-RP2 appears

• Drag and drop the UF2 file onto this drive
• The QTPY's reboot, the program runs

• Plug a USB C cable from Assist to a computer or a smartphone
• Plug an assistive switch in the jack port of the assist
• When you press the assistive switch the ASSIST emulate a HID Function
• To change the HID mode, press the ASSIST Mode Button, the color's led change

Blue : Spacebar Key

red : Return key

yellow : Left mouse click

green : assistive switch is pressed