2 layers23.9 × 26 mm
2 layers97.2 × 55.9 mm
Mjs pcb
meetjestad/mjs_pcb6This repository contains various versions of the sensor station PCB used by Meetjestad.
- Size
- 97.2 × 55.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 83
- Nets
- 48
- Pads
- 219
- Tracks, vias
- 634, 43
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Jun 2016
- Updated
- 10 Aug 2023
Overview
Mjs pcb is an open-source printed circuit board by meetjestad, from the meetjestad/mjs_pcb repository on GitHub. It is a 2-layer board of 97.2 × 55.9 mm with 83 parts on 48 nets, routed with 634 tracks and 43 vias.
It is built around the ATMEGA328-PU, MCP1700-3302E/TT and RFM95W, with the BPW34 among its other parts. Its parts include 15 connectors, 13 resistors, 5 capacitors, 3 ICs and 2 transistors. 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)
MCP1700-3302E/TT
SOT-23-40℃~+125℃@(Tj) 1 1.6uA 178mV@(250mA) 250mA 3.3V 44dB@(100Hz) 6V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsRFM95W
SMD-16PUncategorisedHopeRF Micro-electronics
BPW34
插件,P=5.1mm-40℃~+100℃ 215mW 2nA 430nm~1100nm 60V 900nm ±65° 插件,P=5.1mm Photodiodes ROHSVishay IntertechnologyPhotodiodes
README
README.mdMeetjestad PCB repository
This repository contains various versions of the sensor station PCB used by Meetjestad.
The easiest way to see the various version is to have a look at the releases on Github, which are tagged with the version number. The release pages also contain rendered (PDF) schematics and board files.
Software
These boards can be programmed using the Arduino environment. The necessary configuration and support files to allow this, along with instructions can be found in the mjs_boards repository.
The firmware typically used on these boards is published in the mjs_firmware repository.
License
The original MJS sensor board is designed by Harmen Zijp, together with Matthijs Kooijman.
The design for this board is open hardware and licensed under the the CERN-OHL-W v2 license. Any designs derived from or containing parts of this design must be similarly licensed. See the LICENSE file for the full license text.
Parts
83| Qty | Value | Footprint | References |
|---|---|---|---|
| 33 | meetjestad:perf | , , , , , , , , , , , , , , , +17 | |
| 7 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R6, R7, R9, R11, R13 |
| 5 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R5, R8, R10 |
| 4 | MountingHole | MountingHole:MountingHole_3mm | H1, H2, H3, H4 |
| 3 | 100n | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C3, C5 |
| 2 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C4 |
| 2 | STU60N3LH5 | Package_TO_SOT_THT:TO-251-3_Vertical | Q1, Q2 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | 2.7 - 6.0 VDC | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | DC1 |
| 1 | ATMEGA328P | Package_DIP:DIP-28_W7.62mm_Socket | U1 |
| 1 | Antenna | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | AE1 |
| 1 | BPW34 | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | P6 |
| 1 | Batteries | Battery:BatteryHolder_Keystone_2479_3xAAA | P1 |
| 1 | GPS | Connector_JST:JST_PH_S3B-PH-K_1x03_P2.00mm_Horizontal | P4 |
| 1 | HPMA115S0-XXX | Connector_Molex:Molex_PicoBlade_53047-0810_1x08_P1.25mm_Vertical | P14 |
| 1 | I2C breakout | meetjestad:Molex_KK-254_44812-0004_1x04_P2.54mm_Vertical | P3 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | Lipo | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | P10 |
| 1 | MCP1700-3302 | Package_TO_SOT_THT:TO-92_Inline | U3 |
| 1 | MJS Logo | meetjestad:mjs | LOGO2 |
| 1 | Open source hardware | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | LOGO1 |
| 1 | RFM95W | RF_Module:HOPERF_RFM9XW_SMD | U2 |
| 1 | V1 | meetjestad:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
| 1 | V2 | meetjestad:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP3 |
| 1 | electrodes | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | P7 |
| 1 | grove analog | meetjestad:NS-Tech_Grove_1x04_P2mm_P2.54mm_Vertical | P12 |
| 1 | grove analog | meetjestad:NS-Tech_Grove_1x04_P2mm_P2.54mm_Vertical_Alternative | P13 |
| 1 | grove i2c | Connector:NS-Tech_Grove_1x04_P2mm_Vertical | P11 |
| 1 | perfboard breakout | Connector_PinHeader_2.54mm:PinHeader_1x11_P2.54mm_Vertical | P8 |
| 1 | piezo | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | P5 |
| 1 | piggyback | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | P15 |
| 1 | power select | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | reset | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P9 |
| 1 | serial breakout | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | P2 |
Questions
How big is the Mjs pcb PCB?
It measures 97.2 × 55.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mjs pcb use?
83 parts, built around the ATMEGA328-PU, MCP1700-3302E/TT, RFM95W and BPW34. 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 Mjs pcb KiCad files?
From the meetjestad/mjs_pcb repository on GitHub, at the commit this page was made from: the board is mjspcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mjs pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask meetjestad before reusing the design.
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