These BOMs are for assembling a finished backpack and are to be seen additional to the PCBA BOMs in the respective pcb folder. These BOMs will not include any parts that are placed on the board by the PCB fabhouse.
This list is also what you would get, if you were to buy a kit through Tindie.
| Name | Part number | Amount | Link |
|---|---|---|---|
| Protoboard PCB | N/A | 1 | PCB |
| Connecting-piece PCB | N/A | 1 | PCB |
| 8 x 2.54mm pin header | N/A | 1 | N/A |
| 10 x 2.54mm pin header | N/A | 1 | N/A |
| 3D printed case | N/A | 1 | Case |
| M2 x 5mm self tapping screw | GB2670.2 5mm | 3 | M2 x 5 noname screws |
| Name | Part number | Amount | Link |
|---|---|---|---|
ESP32 PCB (With ESP32-S2-WROVER, C701333) |
N/A | 1 | PCB, PCBA BOM |
| Connecting-piece PCB | N/A | 1 | PCB |
| 8 x 2.54mm pin header | N/A | 1 | N/A |
| 10 x 2.54mm pin header | N/A | 1 | N/A |
| 3D printed case | N/A | 1 | Case |
| M2 x 5mm self tapping screw | GB2670.2 5mm | 3 | M2 x 5 noname screws |
| Name | Part number | Amount | Link |
|---|---|---|---|
ESP32 PCB (With ESP32-S2-WROVER-I, C701334) |
N/A | 1 | PCB, PCBA BOM |
| Connecting-piece PCB | N/A | 1 | PCB |
| 8 x 2.54mm pin header | N/A | 1 | N/A |
| 10 x 2.54mm pin header | N/A | 1 | N/A |
| 3D printed case | N/A | 1 | Case |
| M2 x 5mm self tapping screw | GB2670.2 5mm | 3 | M2 x 5 noname screws |
| 2.4GHz Wifi Antenna with IPX to RP-SMA cable | N/A | 1 | Noname Antenna |
| Name | Part number | Amount | Link |
|---|---|---|---|
| Raspberry PCB | N/A | 1 | PCB, PCBA BOM |
| Connecting-piece PCB | N/A | 1 | PCB |
| 8 x 2.54mm pin header | N/A | 1 | N/A |
| 10 x 2.54mm pin header | N/A | 1 | N/A |
| Raspberry Pi Zero W | RPD08818W | 1 | Elecrow Rpi Zero W |
| 3D printed case | N/A | 1 | Case |
| M2 x 5mm self tapping screw | GB2670.2 5mm | 3 | M2 x 5 noname screws |
| M2.5 Hexagon Nut | DIN-EN-ISO 4032 | 2 | Norm |
| M2.5 x 6mm countersunk machine screw | ISO 14581 | 2 | Norm |
| CR927 (3V) Battery | N/A | 1 | N/A |
In the 3d_printing folder you'll find a case option for every design variant. The cases are to be printed with PETG with 0.15mm layer height and a 0.4mm nozzle. Larger layer heights or nozzles might make the boards not fit easily.
The cases currently provided are:
- Bare (Case without cutouts for prototyping)
- ESP32_InternalAntenna (Wifi dev board using the on-board ESP32 antenna. Sleek and compact)
- ESP32_ExternalAntenna (Wifi dev board using an external antenna. Powerful but bulky)
- Raspberry (Pi Zero mount)
Step 1 - Clamp the back board vertically
Step 2 - Slide on the connecting piece
Step 3 - Solder down one of the connectors
You don't have to care about the angle of the boards for now.
Step 4 - Reflow the connection, aligning the boards at 90 degrees
Step 5 - Make sure the boards are also aligned when viewed from the front
Step 6 - Solder the remaining connections on the top
Step 7 - Make sure that none of the connections are bridged between the pads horizontally
Step 8 - Flip the board around so you can see the bottom connections
Step 9 - Solder the bottom connections
Step 10 - Flip the board around again and solder the pin headers
Make sure to get them at a right angle to the board as well. Otherwise you will put stress on the board when inserting into the Flipper.
Step 11 - Optional - Find the 3D printed case and screws
Excursion: Installing the antenna jack for external antenna boards
Step 11.1 - Insert the antenna jack into the slot and fix nut from the outside
Step 11.2 - Plug antenna extension into the board
Step 11.3 - Carefully route the extension while inserting the board
Step 11.4 - Make sure the board is seated without pinching the wire
Step 12 - Slide the board into the case and screw down the 3 mounting points
Step 0 - Find the Raspberry board and read the instructions as printed on the board
Step 1 - Place the Raspberry Pi Zero W on top of the board
Note the lack of pin headers. The board won't fit with headers installed!
Step 2 - Screw down the Raspberry Pi Zero W using M2.5 screws and nuts from behind
The screws are countersunk into the PCB so they will be flat from the outside
Step 3 - Solder the 7 connections through both boards
With the Pi face down, heat the pads from the backpack board and apply solder into the hole. You will see the solder "bubble down" through both holes forming a connection between the boards.
Flipping the board to the front you should see solder ran all the way through both boards. This picture shows 50% of the solder process done, having soldered only from the back:
When it looks like this, apply some solder from the top as well to make the connections look nice from both sides.
Step 4 - The finished board should look like this
You should now see clean connections between both sides of the board. You can now insert the CR927 battery for the RTC if desired, and continue with the rest of the general build guide, to assemble your backpack.
I recommend using FZEasyMarauderFlash for this. It allows you to flash either the BlackMagic Firmware that Flipper itself ships with their Devboards, as well as Marauder or Evil Portal.
Instructions are done using a fresh Arch install.
- Make sure you have git python and pip installed:
sudo pacman -S --needed python python-pip git
- Add your current user to the
uucpgroup (sometimesdialouton other OSes)
sudo usermod -a -G uucp $USER
- Download appropriate UDEV rules (Grabbing from Platformio for convenience)
curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/system/99-platformio-udev.rules | sudo tee /etc/udev/rules.d/99-platformio-udev.rules
You might need to reboot afterwards as manually reloading rules and triggering doesn't always work with EasyInstall.py
- Clone the FZEasyMarauderFlash repo
git clone https://github.com/SkeletonMan03/FZEasyMarauderFlash
- Change directory into the cloned repo
cd FZEasyMarauderFlash
- Install required dependencies (With the override for ease of use. Doing this in a VM anyways.)
pip install -r requirements.txt --break-system-packages
- Execute
EasyInstall.py, which will download the binaries on first launch
python ./EasyInstall.py
You should be greeted with the following selection screen:
-
At this point, hold down the
BOOTbutton on your ESP32 board and plug the board into your Computer using a USB-C cable -
Select the firmware you wish to install. For Marauder, choose
1, for Black magic, choose3, and for Evil Portal, choose15. In this example, we're gonna install Marauder with1
- This will take a few seconds. After the flash is complete you'll get the following confirmation:
-
Pressing the
RESETbutton on the backpack at this point will make the board restart with the new firmware. Marauder will confirm successful installation by blinking the LED briefly in White, Yellow, Red, before shutting the LED off. -
Inserting the board into your Flipper, you can test the functionality by opening the Wifi Marauder app (Present in Unleashed firmware or similar) and executing a simple AP scan
