# Battery-Free Wireless Motor Sensor ## Description Battery-free wireless motor monitoring node powered from a CT energy harvester, with nRF52840 Wirepas connectivity and temperature, environmental, magnetic, vibration, and current-signature sensing. ## Project Details - **Owner:** tktile - **Created:** 8/12/2026 - **Last Updated:** 8/18/2026 - **Visibility:** Public - **Copies:** 1 ## Key Components ### D1 — [BAT54S-TP](https://www.flux.ai/lcsc/bat54s-tp~uulq.md) - LCSC Part Number: C194858 - Package or Case Code: SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR - Manufacturer Name: MCC(美微科) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: BAT54S-TP - Product Info Url: https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_Micro-Commercial-Components-MCC-BAT54S-TP_C194858.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302134_MCC-Micro-Commercial-Components-BAT54S-TP_C194858.pdf - Role Details: Low-voltage CT full-wave bridge; two series-pair BAT54S packages - Functional Group: CT Input and Rectifier - Role: Rectification - Part Type: Schottky Barrier Diodes (SBD) **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### D2 — [BAT54S-TP](https://www.flux.ai/lcsc/bat54s-tp~uulq.md) - Manufacturer Part Number: BAT54S-TP - Functional Group: CT Input and Rectifier - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BR - Manufacturer Name: MCC(美微科) - LCSC Part Number: C194858 - Role Details: Low-voltage CT full-wave bridge; two series-pair BAT54S packages - Part Type: Schottky Barrier Diodes (SBD) - Role: Rectification - Product Info Url: https://lcsc.com/product-detail/Schottky-Barrier-Diodes-SBD_Micro-Commercial-Components-MCC-BAT54S-TP_C194858.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302134_MCC-Micro-Commercial-Components-BAT54S-TP_C194858.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### D3 — [TPD1E05U06DPYR](https://www.flux.ai/lcsc/tpd1e05u06dpyr~sh59.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tpd1e05u06.pdf - JLCPCB Part Class: Extended Part - Role: Protection - Manufacturer Part Number: TPD1E05U06DPYR - LCSC Part Number: C2937017 - Functional Group: ADE9000 Electrode Input - Role Details: V1P protection node TVS to GND; 0.42pF typ, 0.01nA typ/10nA max leakage - Package or Case Code: DFN1006-2L-RD - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: ESD and Surge Protection (TVS/ESD) - Manufacturer Name: TPD1E05U06DPYR **Pins:** - A [pin 2] - C [pin 1] ### D4 — [TPD1E05U06DPYR](https://www.flux.ai/lcsc/tpd1e05u06dpyr~sh59.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tpd1e05u06.pdf - JLCPCB Part Class: Extended Part - Functional Group: ADE9000 Electrode Input - LCSC Part Number: C2937017 - Manufacturer Part Number: TPD1E05U06DPYR - Role Details: V1N protection node TVS to GND; matched to V1P protection - Role: Protection - Package or Case Code: DFN1006-2L-RD - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: ESD and Surge Protection (TVS/ESD) - Manufacturer Name: TPD1E05U06DPYR **Pins:** - A [pin 2] - C [pin 1] ### J1 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Functional Group: CT Input and Rectifier - Part Type: Connector - Manufacturer Name: JST Sales America - Role Details: CT clamp secondary input, 2-pin JST-PH - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Role: Input Connector - Symbol Style: parametric-v1 - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J2 — [S2761-46R](https://www.flux.ai/silicon-yard/s2761-46r.md) - Manufacturer Name: Harwin Inc. - Role Details: JAW_ELECTRODE terminal to 20x10mm copper foil on inside jaw face, contacting cable insulation only - Part Type: Test Point - Functional Group: Jaw Electrode Input - Role: Sensor Input Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: S2761-46R - Datasheet URL: https://www.harwin.com/api/download/datasheet/S2761-46R **Pins:** - ~ [pin 1] ### J3 — TC2030-MCP-NL - Role: Programming Connector - Functional Group: MCU and Radio - Manufacturer Part Number: TC2030-MCP-NL - Datasheet URL: https://www.tag-connect.com/wp-content/uploads/bsk-pdf-manager/2022/06/TC2030-MCP-NL.pdf - Part Type: Connectors - Role Details: TC2030-MCP-NL: pin 1 reset, pin 2 VTref/3V3, pin 3 GND, pin 4 SWDIO, pin 5 SWDCLK, pin 6 unused - Manufacturer Name: Tag-Connect - Mount: Solder **Pins:** - GND [pin 3] - LVP/NC [pin 6] - MCLR/VPP [pin 1] - PGC/ICSPCLK [pin 5] - PGD/ICSPDAT [pin 4] - VDD [pin 2] ### LED1 — [YLED0402YG](https://www.flux.ai/adrian95/yled0402yg~py.md) - Manufacturer Part Number: YLED0402YG - License: https://creativecommons.org/licenses/by/4.0/ - Role: Status Indicator - Role Details: Active-high GPIO indicator from P0.31 through 330 ohm resistor to LED and GND - Manufacturer Name: YONGYUTAI - Part Type: LED - Datasheet URL: https://www.lcsc.com/datasheet/C20608783.pdf - Functional Group: Status Indicator **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [PMV65XPER](https://www.flux.ai/lcsc/pmv65xper~y584.md) - LCSC Part Number: C547266 - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-PMV65XPER_C547266.html - Role Details: Active-low P-channel switch controlled from nRF52840 P0.16; gate default-off pull-up required - JLCPCB Part Class: Extended Part - Manufacturer Part Number: PMV65XPER - Role: High-Side Power Switch - Manufacturer Name: Nexperia(安世) - Part Type: MOSFETs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006111217_Nexperia-PMV65XPER_C547266.pdf - Functional Group: Sensor Power Switch **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U1 — [AEM13921-QFN](https://www.flux.ai/adrian95/aem13921-qfn.md) - Part Type: Linear Regulator - Datasheet URL: https://e-peas.com/documents/AEM13921/DS-AEM13921.pdf - Role: Power Management - Symbol Style: parametric-v1 - Manufacturer Name: E-PEAS - Functional Group: Energy Harvester and Storage - Manufacturer Part Number: AEM13921-QFN - Role Details: AEM13921 CT energy harvesting, 3.8 V hybrid storage management, 3.3 V LOAD rail; peak-load sizing rationale to be verified - Package or Case Code: QFN - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 5V_IMAX [pin 16] - 5V_IN [pin 15] - BUFSRC1 [pin 3] - BUFSRC2 [pin 6] - GND [pin 41] - IRQ [pin 18] - LOAD [pin 14] - LOAD_CFG[0] [pin 36] - LOAD_CFG[1] [pin 10] - LOAD_CFG[2] [pin 11] - SCL [pin 19] - SDA [pin 20] - SHIP_MODE [pin 8] - SRC1 [pin 2] - SRC1_CFG[0] [pin 26] - SRC1_CFG[1] [pin 27] - SRC1_CFG[2] [pin 29] - SRC1_CFG[3] [pin 30] - SRC1_CFG[4] [pin 31] - SRC1_MODE [pin 25] - SRC2 [pin 7] - SRC2_CFG[0] [pin 33] - SRC2_CFG[1] [pin 34] - SRC2_CFG[2] [pin 35] - SRC2_CFG[3] [pin 37] - SRC2_CFG[4] [pin 39] - SRC2_MODE [pin 32] - ST_LOAD [pin 9] - ST_STO [pin 21] - STO [pin 13] - STO_CFG[0] [pin 22] - STO_CFG[1] [pin 23] - STO_CFG[2] [pin 24] - SWBOOST1 [pin 4] - SWBOOST2 [pin 5] - SWBUCK [pin 12] - TH_MON [pin 38] - TH_REF [pin 40] - VDDIO [pin 17] - VINT [pin 28] - ZMPP [pin 1] ### U2 — [MDBT50Q-1MV2](https://www.flux.ai/jecstronic/mdbt50q-1mv2~4xq.md) - Role: MCU and Radio - Datasheet URL: https://www.raytac.com/download/index.php?index_id=43 - Manufacturer Part Number: MDBT50Q-1MV2 - Role Details: Wirepas-capable nRF52840 module with integrated chip antenna and no external RF pin. Place antenna end at PCB edge; keep at least 10.5mm x 3.8mm free of copper, pours, vias, and metal on every layer per Raytac Version L. - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: MCU and Radio - Part Type: Module - Manufacturer Name: Raytac **Pins:** - D- [pin 34] - D+ [pin 35] - DCCH [pin 31] - GND [pin 1] - GND [pin 15] - GND [pin 2] - GND [pin 55] - GND [pin 33] - P0.00/XL1 [pin 17] - P0.01/XL2 [pin 18] - P0.02/AIN0 [pin 11] - P0.03/AIN1 [pin 9] - P0.04/AIN2 [pin 20] - P0.05/AIN3 [pin 21] - P0.06 [pin 22] - P0.07/TRACECLK [pin 23] - P0.08 [pin 24] - P0.09/NFC1 [pin 52] - P0.10/NFC2 [pin 54] - P0.11/TRACEDATA2 [pin 27] - P0.12/TRACEDATA1 [pin 29] - P0.13 [pin 37] - P0.14 [pin 36] - P0.15 [pin 39] - P0.16 [pin 38] - P0.17 [pin 41] - P0.18/~RESET [pin 40] - P0.19 [pin 42] - P0.20 [pin 44] - P0.21 [pin 43] - P0.22 [pin 46] - P0.23 [pin 45] - P0.24 [pin 48] - P0.25 [pin 49] - P0.26 [pin 19] - P0.27 [pin 16] - P0.28/AIN4 [pin 13] - P0.29/AIN5 [pin 10] - P0.30/AIN6 [pin 14] - P0.31/AIN7 [pin 12] - P1.00/TRACEDATA0 [pin 47] - P1.01 [pin 61] - P1.02 [pin 50] - P1.03 [pin 60] - P1.04 [pin 56] - P1.05 [pin 59] - P1.06 [pin 57] - P1.07 [pin 58] - P1.08 [pin 25] - P1.09/TRACEDATA3 [pin 26] - P1.10 [pin 3] - P1.11 [pin 4] - P1.12 [pin 5] - P1.13 [pin 6] - P1.14 [pin 7] - P1.15 [pin 8] - SWDCLK [pin 53] - SWDIO [pin 51] - VBUS [pin 32] - VDD [pin 28] - VDDH [pin 30] ### U3 — [TMP117AIDRVR](https://www.flux.ai/adrian95/tmp117aidrvr~1du.md) - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Switched SENSOR_3V3 I2C temperature sensor - Role: Temperature Sensor - Functional Group: Switched I2C Sensors - Datasheet URL: https://www.ti.com/lit/ds/symlink/tmp117.pdf - Manufacturer Name: Texas Instruments Inc. - Symbol Style: parametric-v1 - Manufacturer Part Number: TMP117AIDRVR **Pins:** - ADD0 [pin 4] - ALERT [pin 3] - GND_1 [pin 2] - GND_2 [pin 7] - SCL [pin 1] - SDA [pin 6] - V+ [pin 5] ### U4 — [SHT40-AD1B-R2](https://www.flux.ai/lcsc/sht40-ad1b-r2~frfh.md) - JLCPCB Part Class: Extended Part - Manufacturer Name: Sensirion AG - Symbol Style: parametric-v1 - Role Details: Switched SENSOR_3V3 I2C temperature and humidity sensor - Role: Environmental Sensor - Datasheet URL: https://sensirion.com/media/documents/33FD6951/67EB9032/HT_DS_Datasheet_SHT4x_5.pdf - Functional Group: Switched I2C Sensors - Package or Case Code: DFN-4_L1.5-W1.5-P0.8 - Manufacturer Part Number: SHT40-AD1B-R2 - Part Type: Humidity Sensors/Temperature and Humidity Sensors **Pins:** - EP [pin 5] - SCL [pin 2] - SDA [pin 1] - VDD [pin 3] - VSS [pin 4] ### U5 — [MLX90393ELW-ABA-011-RE](https://www.flux.ai/lcsc/mlx90393elw-aba-011-re~n30h.md) - Role: Magnetic Sensor - Role Details: MLX90393 family I2C magnetic sensor on switched SENSOR_3V3 - LCSC Part Number: C2654971 - Part Type: Magnetic Sensors - Manufacturer Name: Melexis(比利时迈来芯) - Manufacturer Part Number: MLX90393ELW-ABA-011-RE - Functional Group: Switched I2C Sensors - Package or Case Code: QFN-16_L3.0-W3.0-P0.50-TR-EP1.7 - JLCPCB Part Class: Extended Part **Pins:** - A0 [pin 12] - A1 [pin 11] - EP [pin 17] - INT [pin 1] - INT/TRIG [pin 7] - MISO [pin 6] - N/C [pin 10] - N/C [pin 4] - N/C [pin 14] - N/C [pin 9] - N/C [pin 16] - SCL/SCLK [pin 3] - SDA/MOSI [pin 5] - SENB/CS [pin 2] - VDD [pin 15] - VDD_IO [pin 8] - VSS [pin 13] ### U6 — [ADXL355BEZ-RL](https://www.flux.ai/lcsc/adxl355bez-rl~5hg.md) - Package or Case Code: LCC-14_L6.0-W6.0-P1.27-TL - Functional Group: Switched SPI Vibration Sensor - Role Details: SPI mapping CS P0.24, SCLK P0.19, MOSI P0.20, MISO P0.22, INT1 P0.13 - Role: Vibration Sensor - JLCPCB Part Class: Extended Part - Part Type: Motion Sensors - Accelerometers - Product Info Url: https://lcsc.com/product-detail/Motion-Sensors-Accelerometers_Analog-Devices-ADI-ADXL355BEZ-RL_C662367.html - Manufacturer Name: ADI(亚德诺) - LCSC Part Number: C662367 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2006241236_Analog-Devices-ADXL355BEZ-RL_C662367.pdf - Manufacturer Part Number: ADXL355BEZ-RL **Pins:** - ~{CS}/SCL [pin 1] - DRDY [pin 14] - INT1 [pin 12] - INT2 [pin 13] - MISO/ASEL [pin 4] - MOSI/SDA [pin 3] - RESERVED [pin 7] - SCLK/VSSIO [pin 2] - V1P8ANA [pin 10] - V1P8DIG [pin 8] - VDDIO [pin 5] - VSS [pin 9] - VSSIO [pin 6] - VSUPPLY [pin 11] ### U7 — [ADE9000ACPZ](https://www.flux.ai/lcsc/ade9000acpz~5lg3.md) - LCSC Part Number: C578974 - Role: Energy Metering AFE - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2008241834_Analog-Devices-ADE9000ACPZ_C578974.pdf - Role Details: ADE9000 primary metering path; IA reads burdened CT, VA reads protected capacitive jaw electrode; normal mode ~15-17mA at 3.3V, duty-cycle/PSM3 required - Package or Case Code: QFN-40_L6.0-W6.0-P0.50-BL-EP - Part Type: Analog To Digital Converters (ADCs) - Manufacturer Part Number: ADE9000ACPZ - JLCPCB Part Class: Extended Part - Manufacturer Name: ADI(亚德诺) - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_ADE9000ACPZ_Analog-Devices-ADI-LINEAR-ADE9000ACPZ_C578974.html - Functional Group: ADE9000 Metering **Pins:** - #IRQ0 [pin 31] - #IRQ1 [pin 32] - #RESET [pin 6] - #SS [pin 40] - AGND [pin 26] - AVDDOUT [pin 25] - CF1 [pin 33] - CF2 [pin 34] - CF3/ZX [pin 35] - CF4/#EVENT/DREADY [pin 36] - CLKIN [pin 29] - CLKOUT [pin 30] - DGND [pin 2] - DVDDOUT [pin 3] - EP [pin 41] - GND [pin 28] - IAN [pin 8] - IAP [pin 7] - IBN [pin 10] - IBP [pin 9] - ICN [pin 12] - ICP [pin 11] - INN [pin 14] - INP [pin 13] - MISO [pin 38] - MOSI [pin 39] - NC1 [pin 17] - NC2 [pin 18] - PM0 [pin 4] - PM1 [pin 5] - PULL_HIGH [pin 1] - REF [pin 16] - REFGND [pin 15] - SCLK [pin 37] - VAN [pin 19] - VAP [pin 20] - VBN [pin 21] - VBP [pin 22] - VCN [pin 23] - VCP [pin 24] - VDD [pin 27] ### Y1 — [ECS-245.7-20-4X](https://www.flux.ai/adrian95/ecs-245p7-20-4x~31w.md) - Part Type: Oscillator - Role: Timing - Manufacturer Name: ECS-245.7-20-4X - License: https://creativecommons.org/licenses/by/4.0/ - Functional Group: ADE9000 Metering - Datasheet URL: https://ecsxtal.com/store/pdf/hc-49usx.pdf - Manufacturer Part Number: ECS Inc. - Role Details: ADE9000 24.576MHz crystal; 20pF CL, 30ohm max ESR, 500uW max drive; verify load/drive in layout **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/tktile/battery-free-wireless-motor-sensor~rd](https://www.flux.ai/tktile/battery-free-wireless-motor-sensor~rd).* --- *Generated from [https://www.flux.ai/tktile/battery-free-wireless-motor-sensor~rd](https://www.flux.ai/tktile/battery-free-wireless-motor-sensor~rd)*