Stinger V2 - Dual Stage Brushless Nerf Blaster

HARDWARE KIT IS NEEDED FOR ASSEMBLY, get them here:
https://ifb.sg/products/project-stinger-v2

Read GitHub for info:
https://github.com/Project-Stinger

Description:
Stinger (V2) is an advanced dart blaster, shooting short darts such as Worker HE. It uses 4 BLDC motors, which are each controlled with a fast PID loop to ensure good matching and fast spinup times, driven by an AM32 ESC. A solenoid, driven in closed loop controlled rapid decay for fast fire rates, drives the darts into the flywheels. The blaster is entirely configurable, from firing motor RPM, to firing modes, multiple user modes, tournament mode... (see (insert software repo link)) for more info.

To keep the motors cool and for structural reasons the blaster is a metal 'sandwhich', the motors are mounted to the aluminum side panel where they can dissapate heat.

Multiple BCAR* and stock modules** offer flexibility in accuracy and playing styles *BCAR (Bearing Centered Auto-Rotating) does 2 things. It stabilizes the rear of the dart as it comes out of the barrel (check initial video) causing less random drag, and it provides spin to the dart which then gyroscopically stabilizes it like rifling in a barrel. Right now 3 modules exist, Low Crush (2.7mm), High Crush (3.0mm) and nobcar. **Current stock modules include: folding stock (with carbon fiber rods), locking stock (same rod system), and picatinny stock. But more can be designed in the future.

A custom PCB (insert pcb repo link) houses all the input/output devices, controlled by an RP2040. It also has a high side switch to enter sleep mode. In sleep mode, the ESC is turned off to conserve energy, but the blaster still uses some energy to detect movement and run the code so do not leave it off for too long.

Stinger was developed entirely here in the EU by Bastian and me (Stan). Bastian is responsible for the PCB and code development and I did the rest.

After the 'launch' on youtube, 47 Stinger V2's were sold as finished blasters to all over the world, but mostly the US. This was quite an experience and we learned a lot from it. Now it is time for everyone to have access to this wonderful project.