# FarmShield v4.2 modified ## Description This is a board with mods from the v4.11 schematic. Priority issues to solve are areas boxed in by traces that do not have aconnection to gnd plane. ## Project Details - **Owner:** nessam - **Created:** 3/15/2024 - **Last Updated:** 4/23/2024 - **Visibility:** Public ## Key Components ### BST_IN — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/pin-header-01x02-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### BST_OUT — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/pin-header-01x02-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### BTN — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/pin-header-01x02-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### D1 — [Schottky Diode](https://www.flux.ai/corynrobinson/schottky-diode.md) - Current: 0.7A - Part Type: Diode - Package or Case Code: D_SOD-123 - Manufacturer Part Number: MBR0520LT1G - Purchase Url: https://octopart.com/mbr0520lt1g-onsemi-2933?r=sp - Datasheet URL: chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.diodes.com/assets/Datasheets/ZLLS500.pdf - Breakdown Voltage: 40V - Manufacturer Name: onsemi **Pins:** - A - K ### D2 — Schottky Diode - Datasheet URL: chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.diodes.com/assets/Datasheets/ZLLS500.pdf - Current: 0.7A - Part Type: Diode - Package or Case Code: D_SOD-123 - Manufacturer Part Number: MBR0520LT1G - Purchase Url: https://octopart.com/mbr0520lt1g-onsemi-2933?r=sp - Manufacturer Name: onsemi - Breakdown Voltage: 40V **Pins:** - A [pin 2] - K [pin 1] ### D3 — [ZHCS500TA](https://www.flux.ai/vasyl/zhcs500ta.md) - Part Type: Single Diodes - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Diodes Incorporated - Manufacturer Part Number: ZHCS500TA - Datasheet URL: https://www.diodes.com/assets/Datasheets/ZHCS500.pdf **Pins:** - Anode [pin 1] - Cathode [pin 3] ### DHT — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### DS1 — [TPS22916BYFPT](https://www.flux.ai/vasy_skral/tps22916byfpt.md) - Manufacturer Part Number: TPS22916BYFPT - Package or Case Code: 4-DSBGA (0.74x0.74) - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps22916.pdf?ts=1614600934934&ref_url=https%253A%252F%252Fwww.google.com%252F **Pins:** - GND - ON - VIN - VOUT ### DS2 — [TPS22916BYFPT](https://www.flux.ai/vasy_skral/tps22916byfpt.md) - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps22916.pdf?ts=1614600934934&ref_url=https%253A%252F%252Fwww.google.com%252F - Package or Case Code: 4-DSBGA (0.74x0.74) - Part Type: Integrated Circuit - Manufacturer Part Number: TPS22916BYFPT **Pins:** - GND - ON - VIN - VOUT ### FMETER — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### J1 — [TerminalBlock-01x02P-3.50mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-350mm.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J2 — [TerminalBlock-01x02P-3.50mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-350mm.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J3 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/pin-header-01x02-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md) - Part Type: Connector **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### J5 — [TerminalBlock-01x02P-3.50mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-350mm.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### LIGHT — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md) - Part Type: Connector **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### M4 — [Adafruit Feather M4 Express](https://www.flux.ai/vasyl/adafruit-feather-m4-express.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Adafruit Industries LLC - Manufacturer Part Number: 3857 - Part Type: Evaluation Boards - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/761/3857_Web.pdf **Pins:** - 3V [pin 2] - A0 [pin 5] - A1 [pin 6] - A2 [pin 7] - A3 [pin 8] - A4 [pin 9] - A5 [pin 10] - AREF [pin 3] - BAT [pin 17] - D10 [pin 23] - D11 [pin 22] - D12 [pin 21] - D13 [pin 20] - D4 [pin 16] - D5 [pin 26] - D6 [pin 25] - D9 [pin 24] - EN [pin 18] - GND [pin 4] - M0 [pin 12] - MI [pin 13] - RST [pin 1] - RX [pin 14] - SCK [pin 11] - SCL [pin 27] - SDA [pin 28] - TX [pin 15] - USB [pin 19] ### MODEM — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### NPK — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md) - Part Type: Connector **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### RFM — [Pin Header 01x09 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x09-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### SM — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### ST — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### SW1 — [DS04-254-2-01BK-SMT](https://www.flux.ai/jecstronic/ds04-254-2-01bk-smt.md) - Part Type: Switch - Manufacturer Part Number: DS04-254-2-01BK-SMT - Manufacturer Name: CUI Devices - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/ds04-254-smt.pdf **Pins:** - ~ [pin 1B] - ~ [pin 1A] ### U1 LT3650 — [LT3650EMSE-4.2#PBF](https://www.flux.ai/jecstronic/lt3650emse-4p2pbf.md) - Manufacturer Part Number: LT3650EMSE-4.2#PBF - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/36504142fc.pdf - Manufacturer Name: Analog Devices, Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - ~CHRG [pin 4] - ~FAULT [pin 5] - ~SHDN [pin 3] - BAT [pin 9] - BOOST [pin 11] - CLP [pin 2] - GND [pin 13] - NTC [pin 8] - RNG/SS [pin 7] - SENSE [pin 10] - SW [pin 12] - TIMER [pin 6] - VIN [pin 1] ### VLV — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/nessam/farmshield-v4p2-modified](https://www.flux.ai/nessam/farmshield-v4p2-modified).* --- *Generated from [https://www.flux.ai/nessam/farmshield-v4p2-modified](https://www.flux.ai/nessam/farmshield-v4p2-modified)*