# Project Sunflower Seeds ## Description Solar-powered autonomous development board that allows you to grow your project from a small seed to a big, beautiful flower. AAA(10440) LiFePO4 battery as energy storage. BQ25504 Ultra Low-Power Energy Harvester ## Project Details - **Owner:** vasy_skral - **Created:** 8/16/2022 - **Last Updated:** 10/30/2023 - **Visibility:** Public - **Stars:** 3 - **Forks:** 1 - **Copies:** 15 ## Key Components ### BAT1 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa.md) - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf - Part Type: Connector - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 1076 **Pins:** - NEGATIVE [pin -] - POSITIVE [pin +] ### D1 — [BAT60JFILM](https://www.flux.ai/vasy_skral/bat60jfilm.md) - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/3d/d2/27/1d/20/e3/4d/48/CD00001944.pdf/files/CD00001944.pdf/jcr:content/translations/en.CD00001944.pdf - Part Type: Diode - Manufacturer Part Number: BAT60JFILM **Pins:** - A [pin 2] - K [pin 1] ### D2 — [BAT60JFILM](https://www.flux.ai/vasy_skral/bat60jfilm.md) - Manufacturer Part Number: BAT60JFILM - Part Type: Diode - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/3d/d2/27/1d/20/e3/4d/48/CD00001944.pdf/files/CD00001944.pdf/jcr:content/translations/en.CD00001944.pdf - Manufacturer Name: STMicroelectronics **Pins:** - A [pin 2] - K [pin 1] ### D3 — [BAT60JFILM](https://www.flux.ai/vasy_skral/bat60jfilm.md) - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/3d/d2/27/1d/20/e3/4d/48/CD00001944.pdf/files/CD00001944.pdf/jcr:content/translations/en.CD00001944.pdf - Manufacturer Name: STMicroelectronics - Part Type: Diode - Manufacturer Part Number: BAT60JFILM **Pins:** - A [pin 2] - K [pin 1] ### D4 — [BAT60JFILM](https://www.flux.ai/vasy_skral/bat60jfilm.md) - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/3d/d2/27/1d/20/e3/4d/48/CD00001944.pdf/files/CD00001944.pdf/jcr:content/translations/en.CD00001944.pdf - Part Type: Diode - Manufacturer Part Number: BAT60JFILM **Pins:** - A [pin 2] - K [pin 1] ### I2C — [Connector 01x04 0.100](https://www.flux.ai/vasy_skral/connector-01x04-0100.md) - Part Type: Connector **Pins:** - 1 - 2 - 3 - 4 ### IO0 — [TL3330AF260QG](https://www.flux.ai/vasy_skral/tl3330af260qg.md) - Manufacturer Part Number: TL3330AF260QG - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/163/TL3330.pdf - Manufacturer Name: E-Switch - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 2] ### IOs — [Pin Header 01x22 P2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x22-p254mm-vertical.md) - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_15 [pin 15] - Pin_16 [pin 16] - Pin_17 [pin 17] - Pin_18 [pin 18] - Pin_19 [pin 19] - Pin_2 [pin 2] - Pin_20 [pin 20] - Pin_21 [pin 21] - Pin_22 [pin 22] - 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] ### PROG — [Pin Header 02x06 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-02x06-254mm-vertical.md) - Part Type: Connector **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 — [BSS138](https://www.flux.ai/vasy_skral/bss138.md) - Manufacturer Part Number: BSS138 - Manufacturer Name: onsemi - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Part Type: Transistor **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — [BSS138](https://www.flux.ai/vasy_skral/bss138.md) - Part Type: Transistor - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Part Number: BSS138 - Manufacturer Name: onsemi **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### QWIIC — [QWIIC I2C JST Connector](https://www.flux.ai/vasy_skral/qwiic-i2c-jst-connector.md) - Part Type: Connector - Manufacturer Part Number: SM04B-SRSS-TB - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/JST%20PDFs/SR%20Connector.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### RST — [TL3330AF260QG](https://www.flux.ai/vasy_skral/tl3330af260qg.md) - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/163/TL3330.pdf - Manufacturer Part Number: TL3330AF260QG - Manufacturer Name: E-Switch - Part Type: Switch **Pins:** - P1 [pin 1] - P2 [pin 2] ### SC1 — [SM141K04LV](https://www.flux.ai/vasy_skral/sm141k04lv.md) - Datasheet URL: https://waf-e.dubudisk.com/anysolar.dubuplus.com/[email protected]/O18Ae0B/DubuDisk/www/Gen3/SM141K04LV%20DATA%20SHEET%20202007.pdf - Manufacturer Part Number: SM141K04LV - Part Type: Power Source - Manufacturer Name: ANYSOLAR Ltd **Pins:** - - [pin 2] - + [pin 1] ### SC2 — [SM141K04LV](https://www.flux.ai/vasy_skral/sm141k04lv.md) - Part Type: Power Source - Manufacturer Name: ANYSOLAR Ltd - Datasheet URL: https://waf-e.dubudisk.com/anysolar.dubuplus.com/[email protected]/O18Ae0B/DubuDisk/www/Gen3/SM141K04LV%20DATA%20SHEET%20202007.pdf - Manufacturer Part Number: SM141K04LV **Pins:** - - [pin 2] - + [pin 1] ### SC3 — [SM141K04LV](https://www.flux.ai/vasy_skral/sm141k04lv.md) - Manufacturer Name: ANYSOLAR Ltd - Part Type: Power Source - Manufacturer Part Number: SM141K04LV - Datasheet URL: https://waf-e.dubudisk.com/anysolar.dubuplus.com/[email protected]/O18Ae0B/DubuDisk/www/Gen3/SM141K04LV%20DATA%20SHEET%20202007.pdf **Pins:** - - [pin 2] - + [pin 1] ### SC4 — [SM141K04LV](https://www.flux.ai/vasy_skral/sm141k04lv.md) - Part Type: Power Source - Manufacturer Name: ANYSOLAR Ltd - Datasheet URL: https://waf-e.dubudisk.com/anysolar.dubuplus.com/[email protected]/O18Ae0B/DubuDisk/www/Gen3/SM141K04LV%20DATA%20SHEET%20202007.pdf - Manufacturer Part Number: SM141K04LV **Pins:** - - [pin 2] - + [pin 1] ### U1 — [BQ25504RGTT](https://www.flux.ai/vasy_skral/bq25504rgtt.md) - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Manufacturer Part Number: BQ25504RGTT - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq25504.pdf **Pins:** - AVSS [pin 12] - EPAD [pin 17] - LBST [pin 16] - OK_HYST [pin 9] - OK_PROG [pin 10] - OT_PROG [pin 5] - VBAT [pin 14] - VBAT_OK [pin 11] - VBAT_OV [pin 6] - VBAT_UV [pin 8] - VIN_DC [pin 2] - VOC_SAMP [pin 3] - VRDIV [pin 7] - VREF_SAMP [pin 4] - VSS_1 [pin 1] - VSS_13 [pin 13] - VSTOR [pin 15] ### U2 — [ESP32-WROOM-32 with Simplified Footprint](https://www.flux.ai/vasy_skral/esp32-wroom-32-with-simplified-footprint.md) - Manufacturer Name: Espressif Systems - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Manufacturer Part Number: ESP32-WROOM-32 - Part Type: Integrated Circuit **Pins:** - EN [pin 3] - GND [pin 15] - GND [pin 39] - GND [pin 38] - GND [pin 1] - 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] ### U3 — [CH340C](https://www.flux.ai/vasy_skral/ch340c.md) - Part Type: Integrated Circuit - Manufacturer Name: Wah - Manufacturer Part Number: CH340C - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf **Pins:** - ~CTS [pin 9] - ~DCD [pin 12] - ~DSR [pin 10] - ~DTR [pin 13] - ~RI [pin 11] - ~RTS [pin 14] - GND [pin 1] - NC [pin 7] - NC [pin 8] - R232 [pin 15] - RXD [pin 3] - TXD [pin 2] - UD- [pin 6] - UD+ [pin 5] - V3 [pin 4] - VCC [pin 16] ### U4 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33.md) - Manufacturer Name: AMS - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021917_Advanced-Monolithic-Systems-AMS1117_C6188.pdf - Manufacturer Part Number: AMS1117-3.3 - Part Type: Integrated Circuit **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### USB — [U253-051T-4BH89-F1B](https://www.flux.ai/vasy_skral/u253-051t-4bh89-f1b.md) - Manufacturer Part Number: U253-051T-4BH89-F1B - Datasheet URL: https://datasheet.lcsc.com/lcsc/2110151630_XKB-Connectivity-U253-051T-4BH89-F1B_C319172.pdf - Manufacturer Name: XKB Connectivity - Part Type: Connector **Pins:** - D- [pin 2] - D+ [pin 3] - GND [pin 5] - ID [pin 4] - S1 [pin 6] - S2 [pin 7] - S3 [pin 8] - S4 [pin 9] - S5 [pin 10] - S6 [pin 11] - VBUS [pin 1] ### USER1 — [TL3330AF260QG](https://www.flux.ai/vasy_skral/tl3330af260qg.md) - Part Type: Switch - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/163/TL3330.pdf - Manufacturer Part Number: TL3330AF260QG - Manufacturer Name: E-Switch **Pins:** - P1 [pin 1] - P2 [pin 2] ### USER2 — [TL3330AF260QG](https://www.flux.ai/vasy_skral/tl3330af260qg.md) - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/163/TL3330.pdf - Manufacturer Part Number: TL3330AF260QG - Manufacturer Name: E-Switch - Part Type: Switch **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/vasy_skral/project-sunflower-seeds](https://www.flux.ai/vasy_skral/project-sunflower-seeds).* --- *Generated from [https://www.flux.ai/vasy_skral/project-sunflower-seeds](https://www.flux.ai/vasy_skral/project-sunflower-seeds)*