4 layers91 × 30.1 mm
Strelka Flight Computer
LulaUAV/Strelka-Flight-Computer
Strelka exists in the family of rocket dog flight computers. This flight computer is fully capable of deploying recovery events.
170 parts2
2 layers95.3 × 84.7 mm
Production
Jyst7/Robotics-Stepper-Controller1Stepper motor controller board based on similar CNC controllers. The motors are connected to external motor drivers with wires connected back into the board.
- Size
- 95.3 × 84.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 99
- Pads
- 328
- Tracks, vias
- 419, 61
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Jun 2026
- Updated
- 24 Jun 2026
Overview
Production is an open-source printed circuit board by Jyst7, from the Jyst7/Robotics-Stepper-Controller repository on GitHub, published under the MIT licence. It is a 2-layer board of 95.3 × 84.7 mm with 63 parts on 99 nets, routed with 419 tracks and 61 vias.
It is built around the ESP32-S3-DEVKITC-1-N8, TLP521GB-S and DB125-3.5-4P-GN-S, with the DB125-3.5-8P-GN-S and XC6220B331MR-G among its other parts. Its parts include 24 resistors, 21 ICs, 9 capacitors, 1 transistor and 1 inductor. It belongs with the robots and motor control boards and the ESP32 boards of this library.
Main components
5
ESP32-S3-DEVKITC-1-N8
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
TLP521GB-S
SMD-4PTransistor, Photovoltaic Output OptoisolatorsAOTE
DB125-3.5-4P-GN-S
插件,P=3.5mm-40℃~+105℃ 1 1 10A 16~28 1x4P 3.5mm 300V 4 4P 8.6mm Green M2 Through Hole Plugin,P=3.5mm Screw Terminal Blocks ROHSDORABOScrew Terminal Blocks
DB125-3.5-8P-GN-S
插件,P=3.5mm-40℃~+105℃ 1 1 10A 16~28 1x8P 3.5mm 300V 8 8.6mm 8P Green M2 Through Hole Plugin,P=3.5mm Screw Terminal Blocks ROHSDORABOScrew Terminal Blocks
XC6220B331MR-G
SOT-25-40℃~+85℃ 1 1A 3.3V 50dB@(1kHz) 655mV@(1A) 6V 8uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Output discharge Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdRobotics-Stepper-Controller
This project is a motor controller board and a cycloidal gearbox. It is designed around the esp32 s3 and can handle up to 6 nema 23's using dm542's.
Main features
-
ESP32 S3: allows for wifi and bluetooth connectivity aswell as allows programming using arduino ide
-
up to 6 motors: allows for using up to 60 motors through the dm542 motor driver
-
up to 8 inputs: allows for some electrically isolated inputs for limit switches probes, etc
-
Sd card: not to sure what to use it for at the moment but its useful to have
-
3d printed cycloidal reducer: 1:10 ratio cycloidal gearbox designed to mount to a Keling KL23H276-30-4A stepper motor
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R6, R9, R12, R15, R18, R21, R24 |
| 8 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R5, R8, R11, R14, R17, R20, R23 |
| 8 | 300Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R4, R7, R10, R13, R16, R19, R22 |
| 8 | TLP521GB-S_C20612587 | easyeda2kicad:SMD-4_L6.5-W4.6-P2.54-LS10.2-BL | U10, U11, U13, U15, U17, U19, U21, U22 |
| 6 | DB125-3.5-4P-GN | easyeda2kicad:CONN-TH_DB125-3.5-4P-GN | U1, U2, U3, U4, U5, U6 |
| 3 | 74AHCT595T16-13 | easyeda2kicad:TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL | U12, U16, U20 |
| 2 | 0.1 μF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C85 |
| 2 | 22μF | Capacitor_SMD:C_1206_3216Metric | C4, C5 |
| 2 | DB125-3.5-8P-GN-S | easyeda2kicad:CONN-TH_8P-P3.50_DORABO_DB125-3.5-8P-GN-S | U14, U18 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_4.3x6.2mm_M4_Pad | H1, H2 |
| 1 | 100nF | Capacitor_SMD:C_1206_3216Metric | C7 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 10μF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 10μF | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 4.7μF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 4.7μH | easyeda2kicad:IND-SMD_L5.0-W5.0 | L1 |
| 1 | AP63205WU-7 | easyeda2kicad:TSOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | U8 |
| 1 | ESP32-S3-DevKitC | Espressif:ESP32-S3-DevKitC | U7 |
| 1 | TF PUSH | easyeda2kicad:TF-SMD_TF-PUSH | Card1 |
| 1 | XC6220B331MR-G | easyeda2kicad:SOT-25_L3.0-W1.6-P0.95-LS2.8-TL | Q1 |
The 59 most common of 63 parts.
Questions
How big is the Production PCB?
It measures 95.3 × 84.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Production use?
63 parts, built around the ESP32-S3-DEVKITC-1-N8, TLP521GB-S, DB125-3.5-4P-GN-S and DB125-3.5-8P-GN-S. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Production KiCad files?
From the Jyst7/Robotics-Stepper-Controller repository on GitHub, at the commit this page was made from: the board is Production/Untitled.kicad_pcb and its schematic Production/Untitled.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Production design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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