

GHOUL2
Balloon Venting Neck Insert Payload
- Size
- 105.4 × 88.9 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 255
- Nets
- 85
- Pads
- 552
- Tracks, vias
- 143, 27
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Oct 2022
- Updated
- 24 Oct 2026
Overview
GHOUL2 is an open-source printed circuit board by UMDBPP, from the UMDBPP/GHOUL repository on GitHub. It is a 4-layer board of 105.4 × 88.9 mm with 255 parts on 85 nets, routed with 143 tracks and 27 vias.
It is built around the TEENSY 4.1, TPS62133RGT and DS18S20, with the SAM-M8Q-0 and IRF540N among its other parts. Its parts include 10 resistors, 8 capacitors, 5 ICs, 1 diode and 1 inductor. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
5TEENSY 4.1
Development Boards & Kits - ARM ModuleSparkFun ElectronicsUncategorisedTPS62133RGT
VQFN-16-EP(3x3)-40℃~+125℃ 1 1.25MHz~2.5MHz 17uA 3A 3V~17V 5V Buck Buck Built-in Fixed Yes VQFN-16-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersDS18S20
TO-92Programmable Resolution 1-Wire Digital Thermometer (-55°C to +125°C)DALLAS MAXIMUncategorisedSAM-M8Q-0
SMD-20P,15x15mmUncategorisedu-bloxIRF540N
TO-2201 N-channel 1.35nF 100V 130W 280pF 33A 35mΩ@10V 4V 52nC@10V 85pF N-Channel TO-220 MOSFETs ROHSOSENMOSFETs
README
ghoul_v1.0/Hardware/GHOUL_V1.0/README.mdParts
255| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1uf | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C5, C7, C8 |
| 3 | IRF540N | Package_TO_SOT_SMD:TO-252-2 | MOSFET_H1, MOSFET1, MOSFET2 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R9 |
| 2 | NichromeConnector | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | Cut-Down1, Cut-Down2 |
| 2 | R220 | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | R6, R7 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3 |
| 1 | 03 | Package_TO_SOT_SMD:TO-263-2 | 0.3 Ohm Resistor1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 15k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 1uH | Inductor_SMD:L_Coilcraft_XxL4040 | L1 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 3.3k | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | R10 |
| 1 | 3.3nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 4.7K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4 |
| 1 | Battery_Cell | ML414H_IV01E:SEIKO_ML414H_IV01E | BT2 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_3000_1x12mm | BT1 |
| 1 | Conn_01x02 | Connector_AMASS:AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | Power Input1 |
| 1 | DS18S20 | Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | U2 |
| 1 | D_Schottky | Diode_SMD:D_SOD-123F | D1 |
| 1 | Heater | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | R1 |
| 1 | LM1084-ADJ | Package_TO_SOT_SMD:TO-263-3_TabPin2 | LM1084-ADJ1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MS5607-02BA | Package_LGA:LGA-8_3x5mm_P1.25mm | U5 |
| 1 | Motor_Servo | Connector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | M1 |
| 1 | SAM-M8Q | RF_GPS:ublox_SAM-M8Q | U6 |
| 1 | TPS62133 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U4 |
| 1 | Teensy4.1 | teensy.pretty-master:Teensy41 | U1 |
| 1 | TestPoint | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP1 |
| 1 | Xbee | GHOULFootPrints:XBee Explorer | Xbee Breakout1 |
The 39 most common of 255 parts.
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Questions
How big is the GHOUL2 PCB?
It measures 105.4 × 88.9 mm and has 4 copper layers, 1.6 mm thick.
What parts does the GHOUL2 use?
255 parts, built around the TEENSY 4.1, TPS62133RGT, DS18S20 and SAM-M8Q-0. 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 GHOUL2 KiCad files?
From the UMDBPP/GHOUL repository on GitHub, at the commit this page was made from: the board is Board/GHOUL2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the GHOUL2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask UMDBPP before reusing the design.