# WalkInPeace EMG Wearable Controller ## Description WalkInPeace belt-clip wearable PCB for 8-channel EMG, IMU, ESP32-S3 classification, haptic/audio alerts, BLE/WiFi notifications, and rechargeable LiPo power management. ## Project Details - **Owner:** ridd11 - **Created:** 5/17/2026 - **Last Updated:** 5/17/2026 - **Visibility:** Public ## Key Components ### F1 — [0805L110WR](https://www.flux.ai/adrian95/0805l110wr~h3i.md) - Manufacturer Part Number: 0805L110WR - Part Type: Fuse - Role: Input Protection - Role Details: 1.1 A hold resettable PTC fuse before regulator/system rail. - Manufacturer Name: Littelfuse Inc. - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=3b1fa5dc-24aa-4363-b543-edb057c2fffa&filename=littelfuse_ptc_0805l_datasheet.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [S2B-PH-SM4-TB(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-sm4-tblfsn~b96.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Manufacturer Part Number: S2B-PH-SM4-TB(LF)(SN) - Role Details: Protected 1500 mAh LiPo input. - Role: Battery Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### J2 — [Pin Header 01x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x04-254mm-vertical~l97.md) - Part Type: Connector - Role: TP4056 Module Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Connects external TP4056 USB-C LiPo charger/protection module because available module part has no usable schematic terminals. **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J4 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Role Details: 235 Hz LRA connected to DRV2605L differential outputs. - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role: LRA Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### J5 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - Role: Buzzer Connector - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Active piezo/magnetic buzzer switched by NMOS from ESP32 GPIO. **Pins:** - P1 [pin 1] - P2 [pin 2] ### J6 — [Pin Header 01x12 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x12-254mm-vertical~yy0.md) - Connector Pitch: 2.54mm - License: https://creativecommons.org/licenses/by/4.0/ - Connector Positions: 12 - Role: Connector - Part Type: Connector - Role Details: Generic ADS1299 8-channel EMG/EEG breakout module header: 3V3, GND, SCLK, DIN/MOSI, DOUT/MISO, CS, DRDY, START, RESET, PWDN, BIAS/RLD, reserved/CLK. **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - 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] ### Q1 — [WNM2021-VB](https://www.flux.ai/lcsc/wnm2021-vb~tr7.md) - Role: Buzzer Low-Side Switch - Manufacturer Name: VBsemi(微碧半导体) - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408141046_VBsemi-Elec-WNM2021-VB_C693165.pdf - Package or Case Code: SC-70-3_L2.1-W1.3-P1.30-LS2.1-BR - Product Info Url: https://lcsc.com/product-detail/MOSFET_VBsemi-Elec-WNM2021_C693165.html - LCSC Part Number: C693165 - Part Type: MOSFETs - Manufacturer Part Number: WNM2021-VB - Role Details: GPIO-driven NMOS low-side switch; gate resistor and pulldown included. **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### U1 — [ESP32-S3-WROOM-1-N16R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1-n16r8~fs1.md) - Manufacturer Part Number: ESP32-S3-WROOM-1-N16R8 - Symbol Style: parametric-v1 - Role: Compute Core - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Datasheet URL: https://www.mouser.com/datasheet/2/891/esp32_s3_wroom_1_wroom_1u_datasheet_en-2930317.pdf - Role Details: Filters EMG/IMU data, runs classification, controls alerts, BLE/WiFi notifications. - Manufacturer Name: Espressif Systems **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND_1 [pin 1] - GND_10 [pin 48] - GND_11 [pin 49] - GND_2 [pin 40] - GND_3 [pin 41] - GND_4 [pin 42] - GND_5 [pin 43] - GND_6 [pin 44] - GND_7 [pin 45] - GND_8 [pin 46] - GND_9 [pin 47] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U3 — [MPU-6050](https://www.flux.ai/adrian95/mpu-6050~itd.md) - Role: IMU Sensor - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: TDK InvenSense - Role Details: I2C accelerometer/gyroscope for gait-phase segmentation. - Manufacturer Part Number: MPU-6050 - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2015/02/MPU-6000-Datasheet1.pdf **Pins:** - AD0 [pin 9] - AUX_CL [pin 7] - AUX_DA [pin 6] - CLKIN [pin 1] - CPOUT [pin 20] - FSYNC [pin 11] - GND [pin 18] - INT [pin 12] - REGOUT [pin 10] - RESV [pin 22] - RESV@1 [pin 19] - RESV@2 [pin 21] - SCL [pin 23] - SDA [pin 24] - VDD [pin 13] - VLOGIC [pin 8] ### U4 — [DRV2605LDGSR](https://www.flux.ai/adrian95/drv2605ldgsr~msw.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/drv2605l.pdf - Role Details: DRV2605L I2C LRA/ERM driver, outputs to LRA connector. - Role: Haptic Driver - Manufacturer Part Number: DRV2605LDGSR - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments **Pins:** - EN [pin 5] - GND [pin 8] - IN/TRIG [pin 4] - OUT- [pin 9] - OUT+ [pin 7] - REG [pin 1] - SCL [pin 2] - SDA [pin 3] - VDD [pin 10] - VDD/NC [pin 6] ### U5 — [TPS63031DSKR](https://www.flux.ai/adrian95/tps63031dskr~yd3.md) - Manufacturer Part Number: TPS63031DSKR - Role Details: Fixed 3.3 V buck-boost regulator for VSYS to 3V3 rail; TPS63031 typical app uses 1.5 uH and 10 uF input/output capacitors. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps63030.pdf - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Role: Power Conversion **Pins:** - EN [pin 6] - EP [pin 11] - FB [pin 10] - GND [pin 9] - L1 [pin 4] - L2 [pin 2] - PGND [pin 3] - PS/SYNC [pin 7] - VIN [pin 5] - VINA [pin 8] - VOUT [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ridd11/walkinpeace-emg-wearable-controller~qr](https://www.flux.ai/ridd11/walkinpeace-emg-wearable-controller~qr).* --- *Generated from [https://www.flux.ai/ridd11/walkinpeace-emg-wearable-controller~qr](https://www.flux.ai/ridd11/walkinpeace-emg-wearable-controller~qr)*