# Subtle Yellow KITT ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** sakshi018 - **Created:** 3/6/2026 - **Last Updated:** 4/3/2026 - **Visibility:** Public - **System Architecture:** flowchart TD RF_IN["RF Input 2.4GHz"] --> MATCH["L-Pi Match C1 L1 C2 L2"] MATCH --> RECT["Schottky Rectifier D1"] RECT --> FILTER["DC Filter C3 C4"] FILTER --> PMIC["Energy Harvester U1 AEM10941"] PMIC -->|"HVOUT"| BLE["BLE Module U2 nRF52810"] PMIC -->|"BATT"| SCAP["Supercap C_SCAP 0.33F"] PMIC -->|"LVOUT"| LV["Optional LV Rail"] BLE <-->|"SWDIO SWDCLK RESET"| SWD["SWD Header 5-pin"] PMIC --> LED["Energy Indicator LED1"] ## Key Components ### CBATT — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Package: SMD_0603_1608Metric - Role: Bulk - Part Type: Non-Polarized Capacitor - Capacitance: 22uF - Role Details: CBATT for AEM10941 BATT **Pins:** - P1 [pin 1] - P2 [pin 2] ### CBOOST — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Capacitance: 22uF - Role: Bulk - Part Type: Non-Polarized Capacitor - Package: SMD_0603_1608Metric - Role Details: CBOOST for AEM10941 boost stage **Pins:** - P1 [pin 1] - P2 [pin 2] ### CBUCK — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Package: SMD_0603_1608Metric - Role: Bulk - Part Type: Non-Polarized Capacitor - Role Details: CBUCK for AEM10941 buck stage - Capacitance: 10uF **Pins:** - P1 [pin 1] - P2 [pin 2] ### CHV — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Package: SMD_0603_1608Metric - Role: Bulk - Capacitance: 10uF - Role Details: CHV for AEM10941 HVOUT - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### CLV — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Capacitance: 10uF - Role: Bulk - Role Details: CLV for AEM10941 LVOUT - Part Type: Non-Polarized Capacitor - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### CSRC — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor.md) - Role Details: CSRC for AEM10941 SRC pin - Capacitance: 10uF - Role: Bulk - Part Type: Non-Polarized Capacitor - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### D1 — [SMS7630-040LF](https://www.flux.ai/adrian95/sms7630-040lf.md) - Role Details: 2.4 GHz RF rectifier diode - Part Type: Diode - Manufacturer Name: Skyworks Solutions Inc. - Manufacturer Part Number: SMS7630-040LF - Package: SMD_0402_1005Metric - Datasheet URL: https://www.skyworksinc.com/-/media/A36775836A4E4BA8A92104088692424F.pdf - Role: Rectifier - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### J1 — [142-0701-801](https://www.flux.ai/adrian95/142-0701-801.md) - Manufacturer Part Number: 142-0701-801 - Package or Case Code: 142-0701-851 - Role: Connector - Connector Type: RF / Coaxial Connectors - Datasheet URL: http://www.farnell.com/datasheets/2048966.pdf - Manufacturer Name: Cinch Connectivity Solutions - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role Details: Edge-mount SMA RF input (50 ohm) **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J2 — [Pin Header 01x05 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x05-254mm-vertical.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role Details: SWD header: SWDIO, SWDCLK, RESET, VCC, GND - Role: Debug Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### LBOOST — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor.md) - Role: Power Inductor - Inductance: 10uH - Part Type: Inductor - Package: SMD_SRN6045TA - Role Details: LBOOST for AEM10941 boost converter **Pins:** - P1 [pin 1] - P2 [pin 2] ### LBUCK — [Generic Inductor](https://www.flux.ai/jharwinbarrozo/generic-inductor.md) - Role Details: LBUCK for AEM10941 buck converter - Role: Power Inductor - Package: SMD_SRN6045TA - Inductance: 10uH - Part Type: Inductor **Pins:** - P1 [pin 1] - P2 [pin 2] ### LED1 — [SML-LX0603GW-TR](https://www.flux.ai/adrian95/sml-lx0603gw-tr.md) - Manufacturer Name: Lumex Opto/Components Inc. - Package: SMD_0603_1608Metric - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.lumex.com/spec/SML-LX0603GW-TR.pdf - Role: Indicator - Part Type: LED - Role Details: Energy indicator LED driven from HVOUT - Manufacturer Part Number: SML-LX0603GW-TR **Pins:** - A [pin 2] - K [pin 1] ### RLED — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor.md) - Part Type: Resistor - Package: SMD_0402_1005Metric - Role Details: Limits current from HVOUT through LED1 - Resistance: 1kΩ - Role: Current Limit **Pins:** - P1 [pin 1] - P2 [pin 2] ### SW1 — [PTS810SJK250SMTRLFS](https://www.flux.ai/jharwinbarrozo/pts810sjk250smtrlfs.md) - Package: SMD - Manufacturer Part Number: PTS810SJK250SMTRLFS - Role: BLE Power Switch - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810121650_C-K-PTS810SJK250SMTRLFS_C221896.pdf - Part Type: Switch - Manufacturer Name: C&K - Role Details: Momentary switch connects HVOUT to BLE VCC when pressed **Pins:** - P1 [pin 1] - P3 [pin 3] ### U1 — [AEM10941](https://www.flux.ai/nico/aem10941.md) - Package: QFN-28 - Part Type: Integrated Circuit - Datasheet URL: https://e-peas.com/wp-content/uploads/2022/09/e-peas-AEM10941-datasheet-solar-energy-harvesting.pdf - Role Details: AEM10941 ambient energy manager - Role: Power Manager - Manufacturer Name: E-Peas - Manufacturer Part Number: AEM10941 **Pins:** - BAL [pin 15] - BATT [pin 16] - BOOST [pin 1] - BUCK [pin 3] - BUFSRC [pin 27] - CFG[0] [pin 6] - CFG[1] [pin 5] - CFG[2] [pin 4] - ENHV [pin 12] - ENLV [pin 18] - FB_COLD [pin 26] - FB_HV [pin 13] - FB_PRIM_D [pin 9] - FB_PRIM_U [pin 10] - GND [pin 29] - HVOUT [pin 14] - LVOUT [pin 11] - PRIM [pin 17] - SELMPP[0] [pin 8] - SELMPP[1] [pin 7] - SET_CHRDY [pin 23] - SET_OVCH [pin 22] - SET_OVDIS [pin 24] - SRC [pin 25] - STATUS[0] [pin 21] - STATUS[1] [pin 20] - STATUS[2] [pin 19] - SWBOOST [pin 28] - SWBUCK [pin 2] ### U2 — E73-2G4M04S-52810 - Package or Case Code: E73-2G4M04S - Datasheet URL: https://forum.mysensors.org/assets/uploads/files/1499826952956-e73-2g4m04s_datasheet_en_v1.1.pdf - Part Type: RF module - Role: BLE Module - Manufacturer Part Number: E73-2G4M04S-52810 - Manufacturer Name: Marvell Technology Group - Role Details: Retained nRF52810 module; connect BLE_VCC_SW to VCC, SWDIO/SWDCLK/RESET to J2, all GND to ^GND; place at board edge with antenna keep-out - Package: WIRELM-SMD_E73-2G4M04S-52810 **Pins:** - AIN0/P0.02 - AIN1/P0.03 - AIN2/P0.04 - AIN3/P0.05 - AIN4/P0.28 - AIN5/P0.29 - AIN6/P0.30 - AIN7/P0.31 - DCC - DEC1 - DEC2 - DEC3 - DEC4 - GND - GND - GND - GND - GND - GND - NC - NC - NFC1/P0.09 - NFC2/P0.10 - P0.06 - P0.07 - P0.08 - P0.11 - P0.12 - P0.13 - P0.14 - P0.15 - P0.16 - P0.17 - P0.19 - P0.20 - P0.21/~RESET - P0.22 - P0.23 - P0.24 - P0.25 - P0.26 - P0.27 - SWDCLK - SWDIO - SWO/P0.18 - VCC *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/sakshi018/subtle-yellow-kitt](https://www.flux.ai/sakshi018/subtle-yellow-kitt).* --- *Generated from [https://www.flux.ai/sakshi018/subtle-yellow-kitt](https://www.flux.ai/sakshi018/subtle-yellow-kitt)*