# Thermostat Cost Optimization ## Description Smart Thermostat design using an ESP32 module for WiFi connectivity and a BME680 sensor for environmental monitoring. The user interface includes an E-ink display and an encoder for settings adjustment. Power: USB and Battery Movement sensor ## Project Details - **Owner:** nico - **Created:** 5/28/2024 - **Last Updated:** 8/13/2024 - **Visibility:** Public - **Operating Temperature:** 0° to 40°C - **Required Standards:** UL 60730-1, UL 60730-2-9, UL 873, SA-C22.2 No. 24 - **Operating Humidity:** Up to 90% RH unpackaged - **Operating Altitude:** Up to 10,000 ft altitude - **License:** https://creativecommons.org/licenses/by/4.0/ - **Stars:** 1 - **Forks:** 2 - **Copies:** 4 ## Key Components ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Manufacturer Name: C&K - Part Type: Switch - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### D1 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Name: Diodes Incorporated - Part Type: Diode - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N5819HW-7-F **Pins:** - A [pin 2] - K [pin 1] ### D2 — [WE-TVS-82400102](https://www.flux.ai/vasy_skral/we-tvs-82400102~xt.md) - Manufacturer Part Number: 82400102 - Datasheet URL: https://katalog.we-online.de/pbs/datasheet/82400102.pdf - Part Type: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Würth Elektronik **Pins:** - GND [pin 2] - IO1 [pin 6] - IO1 [pin 1] - IO2 [pin 4] - IO2 [pin 3] - VDD [pin 5] ### D3 — [1N5819HW-7-F](https://www.flux.ai/jecstronic/1n5819hw-7-f~x5v.md) - Manufacturer Part Number: 1N5819HW-7-F - Manufacturer Name: Diodes Incorporated - Part Type: Diode - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30217.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### D4 — [EMI2121MTTAG](https://www.flux.ai/vasy_skral/emi2121mttag~e51.md) - Datasheet URL: http://www.onsemi.com/pub/Collateral/EMI2121MT-D.PDF - Part Type: Protection - Manufacturer Name: ON Semiconductor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: EMI2121MTTAG **Pins:** - GND [pin 5] - GND [pin 4] - GND [pin 3] - GND [pin 9] - In_1- [pin 2] - In_1+ [pin 1] - Out_1- [pin 7] - Out_1+ [pin 8] - VDD [pin 6] ### FB1 — [MH2029-300Y](https://www.flux.ai/vasy_skral/mh2029-300y~a4.md) - Part Type: Ferrite Bead - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/mh.pdf - Manufacturer Part Number: MH2029-300Y - Manufacturer Name: Bourns Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] ### FB2 — [MH2029-300Y](https://www.flux.ai/vasy_skral/mh2029-300y~a4.md) - Manufacturer Part Number: MH2029-300Y - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/mh.pdf - Part Type: Ferrite Bead - Manufacturer Name: Bourns Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] ### IC1 — [CH340C](https://www.flux.ai/vasyl/ch340c~qf3.md) - Part Type: Integrated Circuit - Datasheet URL: https://datasheet.lcsc.com/szlcsc/Jiangsu-Qin-Heng-CH340C_C84681.pdf - Manufacturer Part Number: CH340C - Manufacturer Name: Wah **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] ### IC2 — [BME680](https://www.flux.ai/vasyl/bme680~s5p.md) - Manufacturer Part Number: BME680 - Manufacturer Name: Bosch Sensortec - Part Type: Specialized Sensors - Datasheet URL: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme680-ds001.pdf **Pins:** - CSB [pin 2] - GND [pin 1] - GND [pin 7] - SCK [pin 4] - SDI [pin 3] - SDO [pin 5] - VDD [pin 8] - VDDIO [pin 6] ### IC3 — [PCM5102](https://www.flux.ai/vasyl/pcm5102~6a.md) - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Manufacturer Part Number: PCM5102 - Datasheet URL: http://www.ti.com/lit/ds/symlink/pcm5102.pdf **Pins:** - AGND [pin 9] - AVDD [pin 8] - BCK [pin 13] - CAPM [pin 4] - CAPP [pin 2] - CPGND [pin 3] - CPVDD [pin 1] - DEMP [pin 10] - DGND [pin 19] - DIN [pin 14] - DVDD [pin 20] - FLT [pin 11] - FMT [pin 16] - LDOO [pin 18] - LRCK [pin 15] - OUTL [pin 6] - OUTR [pin 7] - SCK [pin 12] - VNEG [pin 5] - XSMT [pin 17] ### J1 — [Connector 01x04 0.100](https://www.flux.ai/vasy_skral/connector-01x04-0100~go.md) - Part Type: Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### J2 — [JST B2B PH K 01x02 Connector](https://www.flux.ai/jharwinbarrozo/jst-b2b-ph-k-01x02-connector~zu5.md) - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Name: JST Sales America - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J3 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x06-254mm-vertical~jyw.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **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] ### J4 — [JST B2B PH K 01x02 Connector](https://www.flux.ai/jharwinbarrozo/jst-b2b-ph-k-01x02-connector~zu5.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Part Type: Connector - Manufacturer Name: JST Sales America **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J5 — [JST B2B PH K 01x02 Connector](https://www.flux.ai/jharwinbarrozo/jst-b2b-ph-k-01x02-connector~zu5.md) - Part Type: Connector - Manufacturer Name: JST Sales America - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J6 — [JST B2B PH K 01x02 Connector](https://www.flux.ai/jharwinbarrozo/jst-b2b-ph-k-01x02-connector~zu5.md) - Manufacturer Name: JST Sales America - Part Type: Connector - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### J7 — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x06-254mm-vertical~jyw.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **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] ### J8 — [Pin Header 02x05 1.27mm Vertical SMD](https://www.flux.ai/adrian95/pin-header-02x05-127mm-vertical-smd~aik.md) - Part Type: Connector **Pins:** - Pin_1 - Pin_10 - Pin_2 - Pin_3 - Pin_4 - Pin_5 - Pin_6 - Pin_7 - Pin_8 - Pin_9 ### J9 — [U.FL-R-SMT-1](https://www.flux.ai/vasy_skral/ufl-r-smt-1~yly.md) - Manufacturer Part Number: U.FL-R-SMT-1 - Manufacturer Name: Hirose Electric Co Ltd - Part Type: Connector - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Hirose%20PDFs/UFL%20Series.pdf **Pins:** - 1 [pin 1] - 2 [pin 2-1] - 3 [pin 2-2] ### LED1 — [LED-0402-Template](https://www.flux.ai/vasy_skral/led-0402-template~zvz.md) - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LOCK — [TerminalBlock-01x02P-3.50mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-350mm~mcc.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### MK1 — [SPH0645LM4H-B](https://www.flux.ai/vasy_skral/sph0645lm4h-b~ymg.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Knowles%20Acoustics%20PDFs/SPH0645LM4H-B.pdf - Part Type: Sensor - Manufacturer Part Number: SPH0645LM4H-B - Manufacturer Name: Knowles **Pins:** - BCLK [pin 4] - DATA_OUT [pin 6] - GND [pin 3] - SELECT [pin 2] - VDD [pin 5] - WS [pin 1] ### MK2 — [SPH0645LM4H-B](https://www.flux.ai/vasy_skral/sph0645lm4h-b~ymg.md) - Manufacturer Part Number: SPH0645LM4H-B - Manufacturer Name: Knowles - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Knowles%20Acoustics%20PDFs/SPH0645LM4H-B.pdf - Part Type: Sensor **Pins:** - BCLK [pin 4] - DATA_OUT [pin 6] - GND [pin 3] - SELECT [pin 2] - VDD [pin 5] - WS [pin 1] ### NTC1 — [NTC Thermistor 0603 Template](https://www.flux.ai/vasy_skral/ntc-thermistor-0603-template~gpp.md) - Resistance: 10kΩ - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 2] ### PIR1 — [IRA-S230ST01](https://www.flux.ai/vasyl/ira-s230st01~t5t.md) - Datasheet URL: https://www.murata.com/~/media/webrenewal/products/sensor/infrared/ira/ira-s230st01-e.ashx?la=en - Manufacturer Part Number: IRA-S230ST01 - Part Type: Optical Motion Sensors - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Murata Electronics **Pins:** - DRAIN [pin 1] - GND [pin 3] - SOURCE [pin 2] ### PWR — [LED-0805-Template-2](https://www.flux.ai/vasy_skral/led-0805-template-2~uu0.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### Q1 — BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Manufacturer Name: onsemi - Manufacturer Part Number: BSS138 - Part Type: Transistor **Pins:** - D - G - S ### Q2 — BSS138 - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Part Type: Transistor - Manufacturer Name: onsemi - Manufacturer Part Number: BSS138 **Pins:** - D - G - S ### RST — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Name: C&K - Part Type: Switch **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### RST_BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Part Type: Switch - Manufacturer Name: C&K - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### STM_RST — [PTS815](https://www.flux.ai/vasy_skral/pts815~6b.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Part Type: Switch - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### SW1 — [TS-1088R-02026](https://www.flux.ai/jecstronic/ts-1088r-02026~fo.md) - Manufacturer Name: XUNPU - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_XUNPU-TS-1088R-02026_C455280.pdf - Part Type: Switch - Manufacturer Part Number: TS-1088R-02026 **Pins:** - P1 [pin 1] - P2 [pin 2] ### SW2 — [EC12D1564402](https://www.flux.ai/vasy_skral/ec12d1564402~1ol.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2011041404_ALPSALPINE-EC12D1564402_C444933.pdf - Manufacturer Name: ALPSALPINE - Manufacturer Part Number: EC12D1564402 - Part Type: Rotary encoder **Pins:** - A [pin A] - B [pin B] - C [pin C] - S1 [pin S1] - S2 [pin S2] ### SW3 — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - Manufacturer Part Number: MX1A-11NW - Part Type: Switch - Manufacturer Name: Cherry Americas LLC - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW4 — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - Part Type: Switch - Manufacturer Part Number: MX1A-11NW - Manufacturer Name: Cherry Americas LLC - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW5 — [MX1A-11NW](https://www.flux.ai/vasy_skral/mx1a-11nw~gf0.md) - Part Type: Switch - Manufacturer Part Number: MX1A-11NW - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Cherry%20PDFs/MX%20Series.pdf - Manufacturer Name: Cherry Americas LLC - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - Manufacturer Name: AMS - Manufacturer Part Number: AMS1117-3.3 - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021917_Advanced-Monolithic-Systems-AMS1117_C6188.pdf - Part Type: Integrated Circuit **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U10 — [APDS-9960](https://www.flux.ai/jecstronic/apds-9960~78u.md) - Part Type: Integrated Circuit - Manufacturer Part Number: APDS-9960 - Datasheet URL: https://www.snapeda.com/parts/APDS-9960/Broadcom%20Limited/datasheet/ - Manufacturer Name: Broadcom **Pins:** - GND - INT - LDR - LEDA - LEDK - SCL - SDA - VDD ### U2 — [ESP32-WROOM-32E](https://www.flux.ai/vasy_skral/esp32-wroom-32e~7ed.md) - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-WROOM-32E **Pins:** - GND=> . [pin 15] - EN [pin 3] - GND [pin 38] - GND [pin 39] - 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 18] - NC [pin 19] - NC [pin 17] - NC [pin 21] - NC [pin 22] - NC [pin 32] - NC [pin 20] - RXD0/IO3 [pin 34] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - TXD0/IO1 [pin 35] - VDD [pin 2] ### U3 — [HTEW0154T8](https://www.flux.ai/vasy_skral/htew0154t8~r3.md) - Manufacturer Name: Chengdu Heltec Automation technology CO., LTD - Manufacturer Part Number: HTEW0154T8 - Datasheet URL: https://resource.heltec.cn/download/e-ink/154/1.54b%26w/HTEW0154T8_V20/HTEW0154T8_V20.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Display Device - Purchase Url: https://www.aliexpress.com/item/1005005765133180.html - Product Info Url: https://heltec.org/project/154-e-ink/ **Pins:** - BUSY [pin 7] - CLK [pin 6] - CS [pin 5] - D/C [pin 3] - GND [pin 2] - SDI [pin 4] - VCC [pin 1] ### U4 — [BQ25895RTWT](https://www.flux.ai/vasy_skral/bq25895rtwt~slj.md) - Manufacturer Part Number: BQ25895RTWT - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq25895.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~CE [pin 9] - ~QON [pin 12] - BAT [pin 13] - BAT__1 [pin 14] - BTST [pin 21] - D- [pin 3] - D+ [pin 2] - DSEL [pin 24] - EXP [pin 25] - ILIM [pin 10] - INT [pin 7] - OTG [pin 8] - PGND [pin 17] - PGND__1 [pin 18] - PMID [pin 23] - REGN [pin 22] - SCL [pin 5] - SDA [pin 6] - STAT [pin 4] - SW [pin 19] - SW__1 [pin 20] - SYS [pin 15] - SYS__1 [pin 16] - TS [pin 11] - VBUS [pin 1] ### U5 — [TL072CDT](https://www.flux.ai/jecstronic/tl072cdt~9h8.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/bb/4d/19/24/7d/40/48/a6/CD00000490.pdf/files/CD00000490.pdf/jcr:content/translations/en.CD00000490.pdf - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: TL072CDT **Pins:** - -IN 1 [pin 2] - -IN 2 [pin 6] - -VCC [pin 4] - +IN 1 [pin 3] - +IN 2 [pin 5] - +VCC [pin 8] - OUT 1 [pin 7] - OUT 2 [pin 1] ### U6 — [SN74LS04DR](https://www.flux.ai/jecstronic/sn74ls04dr~j88.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/sn74ls04.pdf - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LS04DR **Pins:** - 1A [pin 1] - 1Y [pin 2] - 2A [pin 3] - 2Y [pin 4] - 3A [pin 5] - 3Y [pin 6] - 4A [pin 9] - 4Y [pin 8] - 5A [pin 11] - 5Y [pin 10] - 6A [pin 13] - 6Y [pin 12] - GND [pin 7] - VCC [pin 14] ### U7 — [STM32F103C8T6](https://www.flux.ai/vasy_skral/stm32f103c8t6~isy.md) - Datasheet URL: https://www.st.com/resource/en/datasheet/stm32f103cb.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: STMicroelectronics - Part Type: Microcontroller - Manufacturer Part Number: STM32F103C8T6 **Pins:** - BOOT0 [pin 44] - NRST [pin 7] - PA0 [pin 10] - PA1 [pin 11] - PA10 [pin 31] - PA11 [pin 32] - PA12 [pin 33] - PA13 [pin 34] - PA14 [pin 37] - PA15 [pin 38] - PA2 [pin 12] - PA3 [pin 13] - PA4 [pin 14] - PA5 [pin 15] - PA6 [pin 16] - PA7 [pin 17] - PA8 [pin 29] - PA9 [pin 30] - PB0 [pin 18] - PB1 [pin 19] - PB10 [pin 21] - PB11 [pin 22] - PB12 [pin 25] - PB13 [pin 26] - PB14 [pin 27] - PB15 [pin 28] - PB2 [pin 20] - PB3 [pin 39] - PB4 [pin 40] - PB5 [pin 41] - PB6 [pin 42] - PB7 [pin 43] - PB8 [pin 45] - PB9 [pin 46] - PC13 [pin 2] - PC14 [pin 3] - PC15 [pin 4] - PD0 [pin 5] - PD1 [pin 6] - VBAT [pin 1] - VDD [pin 24] - VDD [pin 36] - VDD [pin 48] - VDDA [pin 9] - VSS [pin 35] - VSS [pin 47] - VSS [pin 23] - VSSA [pin 8] ### U8 — [RC522 RFID](https://www.flux.ai/jecstronic/rc522-rfid~dc6.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Handson Technology - Manufacturer Part Number: RC522 - Part Type: Module - Datasheet URL: http://www.handsontec.com/dataspecs/RC522.pdf **Pins:** - GND [pin 3] - IRQ [pin 4] - MISO/SCL/Tx [pin 5] - MOSI [pin 6] - RST [pin 2] - SCK [pin 7] - SS/SDA/Rx [pin 8] - VCC [pin 1] ### U9 — [MGM240SA22VNA2](https://www.flux.ai/vasy_skral/mgm240sa22vna2~ol.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/mgm240s-datasheet.pdf - Manufacturer Part Number: MGM240SA22VNA2 - Manufacturer Name: Silicon Labs - Part Type: Integrated Circuit **Pins:** - 2G4IO [pin 6] - ANT_IN [pin 5] - ANT_OUT [pin 2] - DECOUPLE [pin 27] - DNC [pin 1] - DNC__1 [pin 3] - DNC__2 [pin 4] - GND [pin 7] - GND__1 [pin 12] - GND__2 [pin 25] - GND__3 [pin 29] - GND__4 [pin 48] - GND__5 [pin 49] - GND__6 [pin 50] - GND__7 [pin 51] - GND__8 [pin 52] - PA00 [pin 15] - PA01/SWCLK/TCK [pin 16] - PA02/SWDIO/TMS [pin 17] - PA03/TDO [pin 18] - PA04/TDI [pin 19] - PA05 [pin 20] - PA06 [pin 21] - PA07 [pin 22] - PA08 [pin 23] - PA09 [pin 24] - PB00 [pin 14] - PB01 [pin 13] - PB02 [pin 11] - PB03 [pin 10] - PB04 [pin 9] - PB05 [pin 8] - PC00 [pin 37] - PC01 [pin 38] - PC02 [pin 39] - PC03 [pin 40] - PC04 [pin 41] - PC05 [pin 42] - PC06 [pin 43] - PC07 [pin 44] - PC08 [pin 45] - PC09 [pin 46] - PD00 [pin 36] - PD01 [pin 35] - PD02 [pin 34] - PD03 [pin 33] - PD04 [pin 32] - PD05 [pin 31] - RESETN [pin 47] - VDCDC [pin 26] - VDD [pin 28] - VDDIO [pin 30] ### USB1 — [TYPE-C-31-M-12](https://www.flux.ai/vasy_skral/type-c-31-m-12~75f.md) - Manufacturer Name: Korean Hroparts Elec - Datasheet URL: https://datasheet.lcsc.com/lcsc/2205251630_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf - Manufacturer Part Number: TYPE-C-31-M-12 - Part Type: Connector **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1A12] - GND [pin A1B12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin S3] - SHIELD [pin S1] - SHIELD [pin S4] - SHIELD [pin S2] - VBUS [pin A4B9] - VBUS [pin B4A9] ### X1 — [NX3215SA-32.768K-EXS00A-MU00003](https://www.flux.ai/jecstronic/nx3215sa-32p768k-exs00a-mu00003~26r.md) - Manufacturer Part Number: NX3215SA-32.768K-EXS00A-MU00003 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Oscillator - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/NDK%20PDFs/NX3215SA-32.768kHz-EXS00A-MU00003.pdf - Manufacturer Name: NDK America, Inc. - Frequency: 32.768kHz **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/nico/thermostat-cost-optimization~hi](https://www.flux.ai/nico/thermostat-cost-optimization~hi).* --- *Generated from [https://www.flux.ai/nico/thermostat-cost-optimization~hi](https://www.flux.ai/nico/thermostat-cost-optimization~hi)*