2 layers84 × 134.5 mm
2 layers152.4 × 63.7 mm
Cut down control board
dwkennedy/ballooning2Mutli-function balloon related project (variometer, balloon cut-down, let down reel, tracking)
- Size
- 152.4 × 63.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 48
- Pads
- 171
- Tracks, vias
- 243, 1
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 29 Dec 2018
- Updated
- 20 Sep 2023
Overview
Cut down control board is an open-source printed circuit board by dwkennedy, from the dwkennedy/ballooning repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 152.4 × 63.7 mm with 52 parts on 48 nets, routed with 243 tracks and 1 via.
It is built around the ATMEGA328-PU, MPL3115A2R1 and L7805, with the FQP30N06L among its other parts. Its parts include 12 connectors, 11 capacitors, 9 resistors, 4 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MPL3115A2R1
LGA-8(3x5)-40℃~+85℃ 0.05Kpa 0.4Kpa 1.95V~3.6V 1s 2uA 50Kpa~1.1bar I2C LGA-8(3x5) Pressure Sensors ROHSNXP SemiconductorsPressure Sensors
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
FQP30N06L
TO-220-3-55℃~+175℃ 1 N-channel 1.04nF 2.5V 20nC 32A 350pF 35mΩ@10V 60V 65pF 79W N-Channel ±20V TO-220-3 MOSFETs ROHSonsemiMOSFETs
README
README.mdballooning
all-in-one ballooning accessory (variometer, balloon cut-down, let down reel, tracking)
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | , , , , , | ||
| 3 | 100nF | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P7.50mm_Horizontal | C4, C5, C10 |
| 3 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3 |
| 3 | Battery_Cell | doug_Library:BatteryHolder_Keystone_1051_1xCR123A | BT1, BT2, BT3 |
| 2 | 0.1uF | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P7.50mm_Horizontal | C8, C9 |
| 2 | 0.33uF | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P7.50mm_Horizontal | C6, C7 |
| 2 | 130 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6, R7 |
| 2 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R8, R9 |
| 2 | 22pF | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C1, C2 |
| 2 | FQP30N06L | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | Q1, Q2 |
| 1 | 100K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C12 |
| 1 | 16MHz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | 1uF | Capacitor_THT:C_Axial_L5.1mm_D3.1mm_P7.50mm_Horizontal | C11 |
| 1 | 33K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5 |
| 1 | ATmega328-P | Package_DIP:DIP-28_W7.62mm | U1 |
| 1 | Analog In | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J12 |
| 1 | CUTTER | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | D8 I/O | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J14 |
| 1 | DBG TTL | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J7 |
| 1 | EXT BATT | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J13 |
| 1 | GPS(JST SH) | Connector_JST:JST_SH_BM06B-SRSS-TB_1x06-1MP_P1.00mm_Vertical | J9 |
| 1 | GPS(PIN HDR) | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | GRN | LED_THT:LED_D3.0mm | D2 |
| 1 | ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U6 |
| 1 | L78L33_TO92 | Package_TO_SOT_THT:TO-92_Inline | U5 |
| 1 | LOGO | LOGO | G*** |
| 1 | MOTOR | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | MPL3115A2 | Package_LGA:NXP_LGA-8_3x5mm_P1.25mm_H1.1mm | U2 |
| 1 | RED | LED_THT:LED_D3.0mm | D1 |
| 1 | SAT(10 picoblade) | Connector_Molex:Molex_PicoBlade_53047-1010_1x10_P1.25mm_Vertical | J10 |
| 1 | SAT(PIN HDR) | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J5 |
| 1 | SW_SPST | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | SW1 |
| 1 | VGPS SELECT | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | J11 |
Questions
How big is the Cut down control board PCB?
It measures 152.4 × 63.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cut down control board use?
52 parts, built around the ATMEGA328-PU, MPL3115A2R1, L7805 and FQP30N06L. 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 Cut down control board KiCad files?
From the dwkennedy/ballooning repository on GitHub, at the commit this page was made from: the board is hardware/cut down control board.kicad_pcb and its schematic hardware/cut down control board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cut down control board design in my own project?
Its repository publishes it under the GPL-3.0 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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