2 layers40.2 × 19.6 mm
Compact
jgillick/ThunderPack
A self-contained microcontroller, battery, and power management system that fits in your pocket.
59 parts44MIT
2 layers99.9 × 16 mm
Original
jgillick/ThunderPack44A self-contained microcontroller, battery, and power management system that fits in your pocket.
- Size
- 99.9 × 16 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 57
- Nets
- 49
- Pads
- 221
- Tracks, vias
- 480, 50
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Sep 2018
- Updated
- 23 Oct 2026
Overview
Original is an open-source printed circuit board by jgillick, from the jgillick/ThunderPack repository on GitHub, published under the MIT licence. It is a 2-layer board of 99.9 × 16 mm with 57 parts on 49 nets, routed with 480 tracks and 50 vias.
It is built around the STM32F411CEU6, GD25Q16CEIGR and AP2210N-3.3TRG1, with the APA102-2020 among its other parts. Its parts include 16 capacitors, 13 resistors, 9 diodes, 6 connectors and 5 ICs. It belongs with the power boards and the STM32 boards of this library.
Main components
4
STM32F411CEU6
UFQFPN-48(7x7)-40℃~+85℃ 1.7V~3.6V 100MHz 128KB 12bit 32 Bit 36 512KB ARM Cortex-M4 Built-in FLASH UFQFPN-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
GD25Q16CEIGR
USON-8(2x3)-40℃~+85℃ 100,000 cycles 120MHz 16Mbit 1uA 2.7V~3.6V 20 Years 250ms@(64KB) 600us SPI USON-8(2x3) NOR FLASH ROHSGigaDevice Semicon BeijingNOR FLASH
AP2210N-3.3TRG1
SOT-23-40℃~+125℃@(Tj) 1 13.2V 1uA 250mV@(300mA) 3.3V 300mA 75dB@(100Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
APA102-2020
SMD-8P,2x2mmSMD-8P,2x2mm New Arrivals ROHSAdafruit IndustriesLight Emitting Diodes (LED)
README
README.mdThunderPack
A kick-ass microcontroller board with everything you need in a tiny package that fits in your pocket. Integrated battery & power management system, fast ARM microcontroller, USB bootloader, 4 high-power PWM outputs, 12 GPIOs, satisfying pushbutton switch, and more.
After years of wiring together portable LED controllers that all consisted of a lithium battery, charge controller, shitty slide power switch, and an Arduino nano (or similar), I wanted something better. I always found those versions to be janky and fragile -- not to mention concerned that damaging the pouch cell battery might make it explode in my pocket! This board has everything I need with room to expand.
Features
- Fast 96Mhz 32-bit ARM microcontroller (STM32F11xx)
- Integrated high power 500mA lithium battery charger
- 4 high-current PWM outputs (1.4 - 2.3A per channel!) with an LED on each for debugging.
- Additional 12 GPIOs (USART, I2C, SPI, USB)
- 16MB onboard flash
- RGB DotStar LED
- Built-in USB
- Tactile on/off switch
- Momentary button with built-in debounce circuit
- Breadboard friendly
- Supports Arduino & CircuitPython.
Board & Pinout
v1.2 Compact
The newest & smallest Thunderpack, measuring in at a minuscule 4cm x 1.9cm (1.6 x 0.75 inches)! The PWM pins on this model can each drive 1.4A to ground (common cathode).
See the full list of pins and details.
v1.2 Original
This is the original ThunderPack form factor and has the battery attached right to the circuit board. The PWM pins on this model can each drive 2.3A to ground (common cathode).
Parts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C5, C15, C16 |
| 6 | LED | LED_SMD:LED_0603_1608Metric | D3, D4, D5, D6, D7, D8 |
| 5 | 20k | Resistor_SMD:R_0603_1608Metric | R2, R4, R5, R9, R13 |
| 5 | 270 | Resistor_SMD:R_0603_1608Metric | R1, R7, R8, R10, R12 |
| 4 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C7, C9, C11, C14 |
| 4 | BSS806N | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2, C6, C13 |
| 2 | 20V2A | Diode_SMD:D_SOD-323 | D1, D2 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R3, R11 |
| 2 | 6pF | Capacitor_SMD:C_0603_1608Metric | C8, C10 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 24Mhz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | AP2210N-3.3TRG1 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | APA102-2020 | Jeremy LEDs:LED-APA102-2020 | D9 |
| 1 | Battery | BatteryClips:Keystone54_18650_PTC | J2 |
| 1 | Bead | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | ESD7002WTT1G | Package_TO_SOT_SMD:SOT-323_SC-70 | U4 |
| 1 | GD25Q16CEIGR | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm | U5 |
| 1 | GPIO | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J7 |
| 1 | GPIO | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | LEDs | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | MCP73830 | Package_DFN_QFN:DFN-6-1EP_2x2mm_P0.5mm_EP0.61x1.42mm | U3 |
| 1 | Mode | Jeremy Button/Switch:SW_SPST_FSMSM | SW1 |
| 1 | Power | Jeremy Button/Switch:SW_KAN-15_PHT | SW2 |
| 1 | Power | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J5 |
| 1 | STM32F411CE | Jeremy:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U1 |
| 1 | USB_B_Micro | Jeremy:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J4 |
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Questions
How big is the Original PCB?
It measures 99.9 × 16 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Original use?
57 parts, built around the STM32F411CEU6, GD25Q16CEIGR, AP2210N-3.3TRG1 and APA102-2020. 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 Original KiCad files?
From the jgillick/ThunderPack repository on GitHub, at the commit this page was made from: the board is hardware/Original/Original.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Original 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).