2 layers44.1 × 51 mm
2 layers57 × 97 mm
MainCollar
plyalex/OpenFence28OpenFence is an open source GPS based digital livestock fencing system and web interface, aiming to reduce barriers of using cell grazing.
- Size
- 57 × 97 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 102
- Pads
- 332
- Tracks, vias
- 758, 206
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 6 Apr 2016
- Updated
- 10 Nov 2016
Overview
MainCollar is an open-source printed circuit board by plyalex, from the plyalex/OpenFence repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 57 × 97 mm with 78 parts on 102 nets, routed with 758 tracks and 206 vias.
It is built around the MCP73871EV, PAM8403 and SS24, with the USBLC6-2P6 among its other parts. Its parts include 30 capacitors, 17 resistors, 9 ICs, 9 connectors and 4 diodes. It belongs with the SAM D and SAM boards of this library.
Main components
4MCP73871EV
-ModulesMicrochip Technology
PAM8403
SOP-16-40℃~+85℃ 2-Channel 2.2V~5.5V 3Wx2@4Ω 6.3mA 90% Automatic mute/no-noise switch、Enable/shutdown function、Filterless architecture Class D SOP-16 Audio Amplifiers ROHSSlkorAudio Amplifiers
SS24
SMA(DO-214AC)-55℃~+150℃ 200uA@40V 2A 40V 50A 550mV@2A Independent SMA(DO-214AC) Schottky Diodes ROHShongjiachengSchottky Diodes
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.md#OpenFence OpenFence is a digital livestock fencing system, which uses GPS and stereo audio alerts to contain animals within a specified boundary. The location of the fences can be updated using the web interface, and transferred to collar devices wirelessly using LoRa via the in field base station. The movements of the animals are logged and transferred to the web, to allow analysis of movements and land utilisation. #The Purpose OpenFence is designed to make it easier to implement productive and environmentally friendly grazing practises, such as cell grazing. This style of grazing has been shown to increase biodiversity, ground cover, soil carbon and water retention, however it is not commonly implemented due to the additional expenses of fencing and labour. #Build Details Go to the HackaDay.io Page
#Collar Code Download and open with Arduino. Additional libraries required are: TinyGPS++ and RTCZero.
#Licence All files: GNU GPL v3
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1uF | Capacitors_SMD:C_0603_HandSoldering | C1, C4, C6, C9, C10, C13, C14, C17, C18, C31 |
| 7 | 1uF | Capacitors_SMD:C_0603_HandSoldering | C8, C12, C22, C26, C27, C28, C29 |
| 5 | 10K | Resistors_SMD:R_0603_HandSoldering | R1, R3, R4, R5, R12 |
| 5 | 4.7uF | Capacitors_SMD:C_0603_HandSoldering | C7, C16, C19, C20, C23 |
| 4 | 1K | Resistors_SMD:R_0603_HandSoldering | R7, R8, R9, R17 |
| 4 | Mounting_Hole | Mounting_Holes:MountingHole_3.2mm_M3 | M1, M2, M3, M4 |
| 3 | 100K | Resistors_SMD:R_0603_HandSoldering | R10, R15, R19 |
| 3 | SS24 | Diodes_SMD:SMA_Handsoldering | D2, D3, D4 |
| 2 | 0.01uF | Capacitors_SMD:C_0603_HandSoldering | C5, C11 |
| 2 | 0.47uF | Capacitors_SMD:C_0603_HandSoldering | C21, C24 |
| 2 | 18pF | Capacitors_SMD:C_0603_HandSoldering | C2, C3 |
| 2 | 330 | Resistors_SMD:R_0603_HandSoldering | R2, R20 |
| 2 | 600R @ 100MHz | RocketScreamKicadLibrary:IND-0805 | L1, L2 |
| 1 | 1M | Resistors_SMD:R_0603_HandSoldering | R6 |
| 1 | 2200uF | OpenFence:Cap1017 | C15 |
| 1 | 270K | Resistors_SMD:R_0603_HandSoldering | R14 |
| 1 | 2N7002 | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q1 |
| 1 | 32.768kHz | OpenFence:FC-135 | Y1 |
| 1 | 47uF | Capacitors_SMD:C_1812_HandSoldering | C30 |
| 1 | 50K | Resistors_SMD:R_0603_HandSoldering | R18 |
| 1 | Battery | Pin_Headers:Pin_Header_Straight_1x03 | P6 |
| 1 | CONN_01X05 | Pin_Headers:Pin_Header_Straight_1x05 | P2 |
| 1 | CONN_02X05 | RocketScreamKicadLibrary:HDR_2x5_Pitch1.27mm | P5 |
| 1 | MAX5387 | Housings_SSOP:TSSOP-14_4.4x5mm_Pitch0.65mm | U7 |
| 1 | MCP1700T-3302E/MB | TO_SOT_Packages_SMD:SOT89-3_Housing_Handsoldering | U8 |
| 1 | MCP73871 | Housings_DFN_QFN:QFN-20-1EP_4x4mm_Pitch0.5mm | U6 |
| 1 | MPU9250 | OpenFence:MPU9250 | U1 |
| 1 | PA6C | OpenFence:PA6C | U3 |
| 1 | PAM8403 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U9 |
| 1 | RF95W | RocketScreamKicadLibrary:RFM9xW | U5 |
| 1 | S25FL116K | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U4 |
| 1 | SAMD21G | Housings_QFP:TQFP-48_7x7mm_Pitch0.5mm | U2 |
| 1 | SMA-EDGE | RocketScreamKicadLibrary:RF-SMA-EDGE | J1 |
| 1 | SPK_L | Pin_Headers:Pin_Header_Straight_1x02 | P7 |
| 1 | SPK_R | Pin_Headers:Pin_Header_Straight_1x02 | P8 |
| 1 | SW_PUSH | Buttons_Switches_SMD:SW_SPST_FSMSM | SW1 |
| 1 | Solar1 | Pin_Headers:Pin_Header_Straight_1x02 | P3 |
| 1 | Solar2 | Pin_Headers:Pin_Header_Straight_1x02 | P4 |
| 1 | USBLC6-2 | OpenFence:SOT666 | D1 |
| 1 | USB_OTG | OpenFence:USB-10118193-0001LF | P1 |
Questions
How big is the MainCollar PCB?
It measures 57 × 97 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MainCollar use?
78 parts, built around the MCP73871EV, PAM8403, SS24 and USBLC6-2P6. 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 MainCollar KiCad files?
From the plyalex/OpenFence repository on GitHub, at the commit this page was made from: the board is hardware/pcbs/MainCollar/MainCollar.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the MainCollar 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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