Check video description for parts list, music names and other infos using marine plywood that i had from other projects case measures 34X27X12.5 cm 0.4 mm base plywood the screws are tight, the plastic case acts like an "oring" between the wood and the metal screw home made wood vice that i made some years ago, video on my channel i wanted the keyboard to slide out of the case it makes it more comfortable to use yes i could make it from plastic or aluminium but i´m using what i have around 5 minute epoxy to secure the nuts add to readjust the first hole cutting plastic pieces to hold the keyboard support quick release pins the foam pieces are used as a flexible mount for the screw it needs to be 1 mm higher, i was going to use 2 mm pvc but i found that the 4 mm pvc is going to be better this is going to be the variable power supply unit with this i can power up any device, just need to select the correct output voltage its based on a project that i did some time ago, just search "mini psu" on my channel there is a schematic in that video hot glue to prevent any wire movement, i´m also painting the glue with black paint to avoid reflections replacing the mini potenciometer for a normal size potenciometer it makes it easier to adjust the voltage and it will last much longer than the mini potenciometer the speakers need to be lowered a few milometers A few coats of black mate spray paint this component tester works from 7 to 12 volts need to adjust the step down converter to reduce the voltage provided by the battery from 24 volts to around 8 volts the 3 way switch controls the 3 output options This module has a lot of functions, can be used as a component tester, pwm, voltage reader, frequency generator and many more things the speakers are secured with zip ties using the metal enclosure battery meter module raspberry pi model 3 disassemble for painting once again a few coats of black mate spray paint fuse box normally i prefer to add always some hot glue to avoid any cable movement usb step down module to convert the 24v from the battery to 5 volt for the raspberry 2 usb cable extensions from the raspberry 2 high speed usb Qc3 chargers RJ45 extension from the raspberry adjusting the step down module to 12 volts for the radio/bt module and amplifier the little black square piece in the bottom is an isolated power module it is used to avoid "ground loop efect" hum/noise in audio aplications when some components share the same power supply i used an improvised "6 way switch" to switch from the amp sound to the monitor audio output right switch position power up radio module and amplifier, switch to the left and it connects the speakers to the monitor audio output raspberry sdcard boot extension add to add another usb step down converter to give more power to the monitor i was going to use only one usb to power the monitor but with the raspberry it is needed to have two power usb conection radio antena custom R-clips for quick keyboard support removal Boot card with raspbian OS main switch raspberry switch radio/ Bluetooth/ audio in/ amplifier switch high speed usb charger switch BT keyboard on monitor audio output switch the audio output provided by the monitor amplifier is average quick maths :) testing the variable power supply it can supply power to almost any electronic device component tester with many functions i´m going to use the voltage meter function it can also generate frequencies, to be used as a pwn, square signal generator, test and identify componentes etc retropie boot Can be used also with dual boot, one card with two operative systems many upgrades are possible, it has an huge battery life, around 70 hours
