Raspberry Pi 4 7 inch 2-in-1 Laptop
This is a 2-in-1 laptop based on Raspberry Pi 4.
Specifications:
- CPU ARM Broadcom BCM2711
- RAM 1, 2, 4 or 8 GB LPDDR4
- Hard-disk: MicroSD up to 64GB (replaceable without disassemble the laptop)
- Display 7" IPS 1024x600
- Capacitative multi-touchscreen
- 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless
- Bluetooth 5.0, BLE
- Webcam 2 Mpixel
- Backlit keyboard with click
- Multitouch trackpad
- 3-cell lithium-ion battery
- Ports: 2x USB 3.0, 1x USB 2.0, 1x Gigabit Ethernet, 1x HDMI, 1x Audio out, 1x 40 pin GPIO header
- External sizes: 183.4x138.1x43.5 mm (7.22x5.44x1.71 inch)
- Weigth: 962 g (33.9 oz)
3D printing of this project is simple but the electronic wiring are very difficult. Good skills in soldering electronic components are required. I'm working on designing a PCB to simplify connections.
I was unable to get the XL4015 charger into the laptop so I will put it together with the power supply.
The current firmware only provides the ON / OFF function. I'm working on the firmware for battery and fan management.
For more information see https://www.stampa3d-forum.it/forum/topic/11362-mini-notebook-convertibile-con-raspberry-pi4/
How to buy:
- 1x Raspberry Pi 4 Model B (1, 2, 4 or 8 GB) https://it.aliexpress.com/item/4000054878108.html
- 1x 7" LCD Display Touch Screen 1024*600 https://www.aliexpress.com/item/32639615250.html
- 1x i8 mini keyboard (select your language) https://www.aliexpress.com/item/33057904077.html
- 1x Dell Precision E6400 E6500 webcam https://it.aliexpress.com/item/4000898989316.html
- 1x 4 ports USB HUB - https://it.aliexpress.com/item/32949829582.html
- 1x Class-D amplifier PAM8403 module https://it.aliexpress.com/item/4000476990910.html
- 1x tablet speaker https://it.aliexpress.com/item/33014129664.html
- 3x 18650 Li-ion 3.7V battery https://www.aliexpress.com/item/4000831190019.html
- 1x 18650 battery storage box case (to take the contacts) https://www.aliexpress.com/item/32996904830.html
- 1x Li-ion battery balancer BMS 3S 18650 https://www.aliexpress.com/item/32818177420.html
- 1x XL4015 5A Li-ion battery charger module https://www.aliexpress.com/item/32902216334.html
- 1x XL4015 5A step down https://it.aliexpress.com/item/32901912036.html
- 1x ATmega32U4 Pro Micro 5V 16MHz https://www.aliexpress.com/item/32831453012.html
- 1x ACS712 5A module https://it.aliexpress.com/item/32348760733.html
- 1x Raspberry Pi 4 heatsink https://it.aliexpress.com/item/33058155629.html
- 1x 3010 Blower Brushless Fan 12V https://www.aliexpress.com/item/4000200985522.html
- 1x HDMI cable, micro male to female, 15cm https://it.aliexpress.com/item/32838963793.html
- 1x HDMI cable, micro male to male, 1m https://it.aliexpress.com/item/4000051703847.html
- 1x Male short HDMI connector https://it.aliexpress.com/item/32960585302.html
- 1x Male USB C connector https://it.aliexpress.com/item/4001069957359.html
- 2x Micro USB Male connector https://www.aliexpress.com/item/33027573348.html
- 1x Power connector DC-005 https://it.aliexpress.com/item/4000930618204.html
- 1x Headphone connector PJ-320B https://it.aliexpress.com/item/32900115725.html
- 1x Toggle switch SS-12D00 https://it.aliexpress.com/item/32964400942.html
- 1x 6X6X4.3 DIP Micro Switch https://www.aliexpress.com/item/32279379661.html
- 1x L7805CV Voltage Regulator 5V 1.5A TO-220
- 1x IRF9540 mosfet or BDX34C transistor
- 1x BD139 transistor
- 1x BC547 transistor
- 2x 5V zener
- 8x 1N4007 diode
- 8x Bolt M2.5x20
- 4x Bolt M2.5x15
- 12x Nut M2.5
- 4x Countersunk head bolt M3x23
- 3x Countersunk head bolt M3x20
- 10x Countersunk head boltt M3x18
- 2x Countersunk head bolt M3x9
- 19x Nut M3
Update 2020.07.10 I designed a new schematic and a PCB.