# Capacitive Moisture Sensor (Corrosion-Resistant) ## Description Capacitive Moisture Sensor (Corrosion Resistant) is a soil moisture sensor based on capacitance changes ## Project Details - **Owner:** vasyl - **Created:** 5/4/2022 - **Last Updated:** 1/7/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Stars:** 2 - **Forks:** 4 - **Copies:** 1 ## Key Components ### BT1 — [BU2032SM-HD-G](https://www.flux.ai/vasy_skral/bu2032sm-hd-g.md) - Part Type: Battery Holder - Manufacturer Part Number: BU2032SM-HD-G - Datasheet URL: https://www.memoryprotectiondevices.com/documents/catalogs/MPD-Battery-Holders.pdf - Manufacturer Name: MPD (Memory Protection Devices) **Pins:** - - - + ### D1 — [1N4148WS-7](https://www.flux.ai/jecstronic/1n4148ws-7.md) - Manufacturer Part Number: 1N4148WS-7 - Datasheet URL: https://www.mouser.com/datasheet/2/308/1N914BWS-D-1801390.pdf - Manufacturer Name: SMC Diode Solutions - Part Type: Diode **Pins:** - A - K ### IC1 — [NE555D2](https://www.flux.ai/vasyl/ne555d2.md) - Manufacturer Name: Texas Instruments - Manufacturer Part Number: NE555D - Datasheet URL: https://rocelec.widen.net/view/pdf/giqzbewdkx/slfs022i.pdf?t.download=true&u=5oefqw - Part Type: Integrated Circuit **Pins:** - CV [pin 5] - DIS [pin 7] - GND [pin 1] - Q [pin 3] - R [pin 4] - THR [pin 6] - TR [pin 2] - VCC [pin 8] ### IC2 — [B2B-PH-SM4-TB](https://www.flux.ai/vasyl/b2b-ph-sm4-tb.md) - Manufacturer Part Number: B2B-PH-SM4-TB - Part Type: Connector - Manufacturer Name: JST - Datasheet URL: https://www.snapeda.com/parts/B2B-PH-SM4-TB(LF)(SN)/JST%20Sales/datasheet/ **Pins:** - 1 - 2 ### J1 — 02x03 2.54mm Horizontal - 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] ### J2 — [TF-015](https://www.flux.ai/vasyl/tf-015.md) - Part Type: Connector - Manufacturer Name: SOFNG - Manufacturer Part Number: TF-015 - Datasheet URL: https://datasheet.lcsc.com/lcsc/2112221030_SOFNG-TF-015_C113206.pdf **Pins:** - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - CD [pin 9] - CD/DAT3 [pin 2] - CLX [pin 5] - CMD [pin 3] - DAT0 [pin 7] - DAT1 [pin 8] - DAT2 [pin 1] - VDD [pin 4] - VSS [pin 6] ### U1 — [LMV358IDT](https://www.flux.ai/jecstronic/lmv358idt.md) - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Part Number: LMV358IDT - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/b9/d8/3b/8f/a1/8f/46/01/CD00079372.pdf/files/CD00079372.pdf/jcr:content/translations/en.CD00079372.pdf - Manufacturer Name: STMicroelectronics **Pins:** - IN -1 - IN -2 - IN +1 - IN +2 - OUTPUT 1 - OUTPUT 2 - VCC - VDD ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasyl/esp32-wroom-32e.md) - Manufacturer Name: Espressif Systems - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-WROOM-32 **Pins:** - EN [pin 3] - GND [pin 15] - GND [pin 1] - GND [pin 38] - GND [pin 39] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0/IO3 [pin 34] - SCK/CLK [pin 20] - SCS/CMD [pin 19] - SDI/SD1 [pin 22] - SDO/SD0 [pin 21] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - SHD/SD2 [pin 17] - SWP/SD3 [pin 18] - TXD0/IO1 [pin 35] - VDD [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasyl/capacitive-moisture-sensor-corrosion-resistant](https://www.flux.ai/vasyl/capacitive-moisture-sensor-corrosion-resistant).* --- *Generated from [https://www.flux.ai/vasyl/capacitive-moisture-sensor-corrosion-resistant](https://www.flux.ai/vasyl/capacitive-moisture-sensor-corrosion-resistant)*