wehub-resource-syncBill of Materials
Every part required to assemble Sesame is cataloged here. Pick the wiring strategy that fits your parts bin, then follow the build flow in docs/build-guide/README.md.
Note
Amazon links below point to representative search results so you can choose local suppliers or equivalent listings. Pricing and availability change frequently. If you don't mind waiting shipping times you can also order direct from manufacturer for much lower rates.
Core Electronics (Both Builds)
| Item | Qty | Notes | Source |
|---|---|---|---|
| MG90S all-metal micro servos (180 Deg) | 8 (buy 10 for spares) | Primary hip/leg actuators; includes servo horns but keep extras | Amazon |
| 0.96" SSD1306 I2C OLED | 1 | 128x64 display that slides into the top cover slot | Amazon |
| USB-C data/power cable | 1 | Needs to carry 5V/3A for flashing and tethered mode | Amazon |
| Rocker power switch (KCD1, panel mount) | 1 | Snaps into the top cover cutout | Amazon |
| 22AWG silicone wire kit | 1 | Power/ground bus lines | Amazon |
| 30AWG silicone wire kit | 1 | Signal leads and dense harnessing | Amazon |
| Heat-shrink assortment | 1 | Insulate OLED, switch, and battery joints | Amazon |
| Small zip ties | 1 pack | Bundling wires inside the frame | Amazon |
Wiring Option A – S2 Mini / Hand-Wired Harness
| Item | Qty | Notes | Source |
|---|---|---|---|
| Lolin/WeMos ESP32-S2 Mini | 1 | Native USB-C, fits on perfboard for the hand-wired build | Amazon |
| Small protoboard (approx. 5×7 cm) | 1 | Hosts the header matrix and rails | Amazon |
| 3-pin male headers | 8 | Build the servo breakout; match spacing to MG90 plugs | Amazon |
| Buck converter (5–12 V in to stable 5V/3A out) | 1 | Powers motors + MCU when using batteries | Amazon |
Wiring Option B – Sesame Distro Board V3/V2 (Included in Build Kits)
Note
If you purchased a Sesame Build Kit, your V2 Distro Board is already assembled, pre-flashed, and included. You don't need to order these parts separately.
| Item | Qty | Notes | Source |
|---|---|---|---|
| Sesame Distro Board V3/V2 PCB | 1 | Fully SMD design. Order with PCBway assembly service or attempt advanced hand soldering. See ordering guide | GitHub |
Wiring Option C – Sesame Distro Board V1 / ESP32-DevKitC-32E (Legacy)
Caution
V1 is now phased out but still supported. Only choose this if you already have a V1 board.
| Item | Qty | Notes | Source |
|---|---|---|---|
| ESP32-DevKitC-32E (ESP32-WROOM-32) | 1 | Base board the Distro Board V1 stacks on. This one is very tricky because its a very specific board. You can use the 32E with the floating pcb antenna OR you can use the 32U but you have to route an antenna inside. | Amazon |
| Sesame Distro Board V1 PCB | 1 | Order Gerber_Sesame-Distro-Board_PCB_Sesame-Distro-Board_V1.zip via PCBway |
GitHub |
| 5V buck converter (same spec as above) | 1 | Mounts on the distro board pads | Amazon |
| 1000 µF electrolytic capacitor | 1 | Smooths output voltage on buck converter; 10V+ rating recommended | Amazon |
| 4-pin JST-XH or PH header | 1 | Optional external connector footprint on PCB | Amazon |
| 2-pin screw terminal (2.54 mm pitch) | 1 | Optional battery input on PCB | Amazon |
| M2.5 × 5 mm male-female standoffs | 4 | Elevate the PCB over the DevKit mounting holes | Amazon |
Power Sources & Connectors
| Item | Qty | Notes | Source |
|---|---|---|---|
| Bambu Lab 14500 7.4V 800mAh Li-ion Battery | 1 | Recommended wireless pack; cheap, effective, designed to fit inside the new internal frame. | Bambu Lab |
| Bambu Lab 7.4V Lithium battery charger | 1 | Matching charger for the 14500 battery with XH2.54 connector. | Bambu Lab |
| XH2.54 female pigtail | 1 | Interface battery to switch/PCB without cutting stock leads (V3 requires soldering). | Amazon |
Fasteners & Mechanical Hardware
| Item | Qty | Usage | Amazon |
|---|---|---|---|
| M2 × 5 mm self-threading screws | ~40 | All plastic joints, OLED retention, motor mounts, and covers (Can just get a variety pack) | Amazon |
| M2.5 × 5mm machine screws | 10 | Servo horn attachment to servo shafts only. Included servo horn screws are usually too short. | Amazon |
3D Printed Parts
Print the 11-part part set outlined in printing/README.md. STL and CAD sources live under hardware/printing/.
Consumables & Tools Checklist
| Item | Notes | Source |
|---|---|---|
| Leaded solder (0.6–0.8 mm) | Easier flow for dense perfboard work | Amazon |
| Flux pen | Protects pads on the perfboard and PCB | Amazon |
| Solder wick / pump | For rework on the OLED pins | Amazon |
| Small flush cutters | Trim servo leads, perfboard traces, or supports | Amazon |
| Precision screwdriver set | Needed for self-tapping M2 hardware | Amazon |
Power & Safety Notes
- Sesame needs at least 5 V at 3 A available at the rails.
- Lolin S2 Mini: Can be powered via USB-C PD (5V/3A capable) for tethered operation, or via battery + buck converter.
- Distro Board V3/V2: Supports both USB-C PD (5V/3A) for tethered operation AND battery + buck converter. Included in all Sesame Build Kits.
- Distro Board V1 (Legacy): Cannot run on tethered USB-C power due to design limitations. Must use battery + buck converter for operation.
- When battery powering either build, route the pack through the rocker switch and buck converter before it touches the rails, mirroring the schematic in docs/wiring-guide/README.md.
- Never cut the factory battery connector off the pack. Instead, create adapter pigtails using XT30 or JST RCY leads so the pack remains chargeable.
- A Bambu Lab 14500 7.4V 800mAh Li-ion battery fits the new stock battery cavity (V3 requires printing the new internal frame).
- Always apply heat shrink tubing to connectors. Be extremely careful when cutting and soldering battery connectors. If you are still using the legacy 10440 solution make sure the cells are removed during soldering.