# GLECS V4 Motor Controller ## Description Industrial 415V 3-phase motor control interface with STM32 command logic, SIMCom A7672S 4G SMS control, isolated relay driver, 12V input power, and 150x100mm 2-layer PCB constraints. ## Project Details - **Owner:** harsh9237 - **Created:** 6/11/2026 - **Last Updated:** 6/11/2026 - **Visibility:** Public ## Key Components ### D1 — [SM6T12A](https://www.flux.ai/lcsc/sm6t12a~cyiq.md) - Role Details: SMB TVS from protected 12V to GND - Manufacturer Part Number: SM6T12A - Product Info Url: https://lcsc.com/product-detail/TVS_STMicroelectronics_SM6T12A_SM6T12A_C133698.html - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Manufacturer Name: ST(意法半导体) - JLCPCB Part Class: Extended Part - LCSC Part Number: C133698 - Part Type: TVS - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_STMicroelectronics-SM6T12A_C133698.pdf - Role: Protection **Pins:** - A [pin 2] - K [pin 1] ### D2 — [1N4007A-01](https://www.flux.ai/lcsc/1n4007a-01~thu7.md) - LCSC Part Number: C526197 - Role: Flyback Diode - Manufacturer Part Number: 1N4007A-01 - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.8-RD - Manufacturer Name: DIODES(美台) - Role Details: 1N4007-family DO-41 alternative across relay coil **Pins:** - A [pin 2] - C [pin 1] ### F1 — [SMD1812P050TF/30](https://www.flux.ai/cherepanyadima/smd1812p050tf30~a1.md) - Part Type: Protection - Manufacturer Part Number: C12559 - Role: Protection - Role Details: 500mA PTC requested; power budget warns may trip during LTE peaks - Manufacturer Name: RUILON - Datasheet URL: https://www.lcsc.com/datasheet/C12559.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [TYPE-C-31-M-12](https://www.flux.ai/lcsc/type-c-31-m-12~0mos.md) - JLCPCB Part Class: Extended Part - Part Type: USB Connectors - Role Details: USB-C connector C165948; PD VBUS input to CH224K - Manufacturer Part Number: TYPE-C-31-M-12 - Package or Case Code: USB-C_SMD-TYPE-C-31-M-12 - Role: Power Input - Product Info Url: https://lcsc.com/product-detail/USB-Type-C_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.html - LCSC Part Number: C165948 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010003_Korean-Hroparts-Elec-TYPE-C-31-M-12_C165948.pdf - Manufacturer Name: 韩国韩荣 **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DN1 [pin A7] - DN2 [pin B7] - DP1 [pin A6] - DP2 [pin B6] - GND [pin B1] - GND [pin B12] - GND [pin A12] - GND [pin A1] - SBU1 [pin A8] - SBU2 [pin B8] - SH [pin 0] - SH [pin 0] - SH [pin 0] - SH [pin 0] - VBUS [pin A4] - VBUS [pin B4] - VBUS [pin B9] - VBUS [pin A9] ### J2 — [XY301V-A-5.0-3P](https://www.flux.ai/lcsc/xy301v-a-5p0-3p~bltd.md) - Manufacturer Name: XINLAIYA(新莱亚) - Role Details: External contactor control terminal; warning silkscreen required - LCSC Part Number: C557652 - Role: Terminal Block - Part Type: Screw terminal - JLCPCB Part Class: Extended Part - Package or Case Code: CONN-TH_XY301V-A-5.0-3P - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2005271131_Ningbo-Xinlaiya-Elec--XY301V-A-5-0-3P_C557652.pdf - Manufacturer Part Number: XY301V-A-5.0-3P **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J3 — [XY301V-A-5.0-3P](https://www.flux.ai/lcsc/xy301v-a-5p0-3p~bltd.md) - Manufacturer Part Number: XY301V-A-5.0-3P - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2005271131_Ningbo-Xinlaiya-Elec--XY301V-A-5-0-3P_C557652.pdf - Role Details: External contactor control terminal; warning silkscreen required - Package or Case Code: CONN-TH_XY301V-A-5.0-3P - Part Type: Screw terminal - JLCPCB Part Class: Extended Part - Manufacturer Name: XINLAIYA(新莱亚) - Role: Terminal Block - LCSC Part Number: C557652 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J4 — [HJ-SMA006](https://www.flux.ai/lcsc/hj-sma006~ceir.md) - Role: RF Connector - Manufacturer Name: 皇捷 - Role Details: LTE antenna edge launch SMA; RF trace/keepout required - JLCPCB Part Class: Extended Part - LCSC Part Number: C1509229 - Part Type: RF Connectors / Coaxial Connectors - Manufacturer Part Number: HJ-SMA006 - Package or Case Code: SMA-SMD_HJ-SMA006 **Pins:** - GND [pin 5] - GND [pin 3] - GND [pin 2] - GND [pin 4] - SIG [pin 1] ### J5 — [DHT22-AM2302 Sensor Module](https://www.flux.ai/adrian95/dht22-am2302-sensor-module~8tv.md) - Role: Header - Manufacturer Part Number: DHT22-AM2302 - Role Details: Placeholder for 4-pin external header if exact C91552 unavailable - Part Type: Module - Manufacturer Name: Adafruit Industries - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - DATA [pin 2] - GND [pin 3] - VCC [pin 1] ### J6 — [Pin Header 01x06 2.54mm PROGRAMMING CONNECTOR](https://www.flux.ai/zalak201285/pin-header-01x06-2p54mm-programming-connector~ji.md) - Role Details: 6-pin 2.54mm SWD header substitution - Part Type: Connector - Role: Programming Header - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - JTCK [pin 2] - JTDI [pin 1] - JTDO [pin 3] - JTMS [pin 4] - NJTRST [pin 5] - RESET [pin 6] ### K1 — [SRD-12VDC-SL-C](https://www.flux.ai/jecstronic/srd-12vdc-sl-c~ofu.md) - Manufacturer Name: Ningbo Songle Relay - Manufacturer Part Number: SRD-12VDC-SL-C - Part Type: Relay - Role: Relay - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Low-voltage contactor control interface; not direct 415V switching **Pins:** - COIL1 [pin COIL1] - COIL2 [pin COIL2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### LED1 — [YLED0402YG](https://www.flux.ai/adrian95/yled0402yg~py.md) - Datasheet URL: https://www.lcsc.com/datasheet/C20608783.pdf - Role Details: Status LED driven from STM32 PA5 - Role: Human Interface - Manufacturer Part Number: YLED0402YG - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: YONGYUTAI - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [VLMS1500-GS08](https://www.flux.ai/adrian95/vlms1500-gs08~9dy.md) - Manufacturer Part Number: VLMS1500-GS08 - Role: Human Interface - Datasheet URL: https://www.vishay.com/docs/82554/vlmo1500.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Relay status LED driven from STM32 PA6 - Manufacturer Name: Vishay Semiconductor Opto Division - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### TP1 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Part Type: Test Point - Testpoint Size: 0.5 - Role Details: 12V test point at X70 Y85 - Role: Test Point **Pins:** - P1 [pin 1] ### TP2 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role Details: 5V test point at X75 Y85 - Part Type: Test Point - Role: Test Point - Testpoint Size: 0.5 **Pins:** - P1 [pin 1] ### TP3 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role: Test Point - Testpoint Size: 0.5 - Part Type: Test Point - Role Details: 3V3 test point at X80 Y85 **Pins:** - P1 [pin 1] ### TP4 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Part Type: Test Point - Testpoint Size: 0.5 - Role Details: GND test point at X85 Y85 - Role: Test Point **Pins:** - P1 [pin 1] ### U1 — [AMS1117-5.0](https://www.flux.ai/vasy_skral/ams1117-50~zsf.md) - Role: Linear Regulator - Manufacturer Name: AMS - Part Type: Integrated Circuit - Manufacturer Part Number: AMS1117-5.0 - Symbol Style: parametric-v1 - Role Details: AMS1117-5.0 substitution for C6187; thermal risk from 12V documented - Datasheet URL: https://datasheet.lcsc.com/lcsc/1810231832_Advanced-Monolithic-Systems-AMS1117-5-0_C6187.pdf **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U10 — [CH224K](https://www.flux.ai/lcsc/ch224k~c4pa.md) - Symbol Style: parametric-v1 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: WCH(南京沁恒) - Power: 100W - Part Type: USB ICs - Role Details: CH224K C970725 negotiates 12V using 24k RSET or CFG logic per datasheet - Package or Case Code: ESSOP-10_L4.9-W3.9-P1.0-LS6.0-TL-EP - Manufacturer Part Number: CH224K - Datasheet URL: https://www.lcsc.com/datasheet/C970725.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=QlUIU1dSRgJcA1FQQVUMBgdeElQIVldRQ1daVQdeQAcxVlNRTlhZUFxfQ1lWUTsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D - Input Voltage: 4 to 22V - LCSC Part Number: C970725 - JLCPCB Part Class: Extended Part - Role: USB-C PD Sink Controller **Pins:** - CC1 [pin 7] - CC2 [pin 6] - CFG1 [pin 9] - CFG2 [pin 2] - CFG3 [pin 3] - DM [pin 5] - DP [pin 4] - GND [pin 11] - PG [pin 10] - VBUS [pin 8] - VDD [pin 1] ### U2 — [STM32 Blue Pill Breakout](https://www.flux.ai/vasyl/stm32-blue-pill-breakout~5gl.md) - Role: Microcontroller Module - Manufacturer Part Number: Blue Pill - Part Type: Breakout board - Role Details: STM32F103C8T6 Blue Pill; UART, sensors, SWD, relay command - Datasheet URL: https://components101.com/sites/default/files/component_datasheet/STM32F103C8T6-Blue-Pill-Development-Board-Datasheet.pdf - Manufacturer Name: ST-Microelectronics **Pins:** - 3V3 [pin 20] - 3V3 [pin 38] - 5V [pin 18] - GND [pin 40] - GND [pin 19] - GND [pin 39] - PA0 [pin 25] - PA1 [pin 26] - PA10 [pin 7] - PA11 [pin 8] - PA12 [pin 9] - PA15 [pin 10] - PA2 [pin 27] - PA3 [pin 28] - PA4 [pin 29] - PA5 [pin 30] - PA6 [pin 31] - PA7 [pin 32] - PA8 [pin 5] - PA9 [pin 6] - PB0 [pin 33] - PB1 [pin 34] - PB10 [pin 35] - PB11 [pin 36] - PB12 [pin 1] - PB13 [pin 2] - PB14 [pin 3] - PB15 [pin 4] - PB3 [pin 11] - PB4 [pin 12] - PB5 [pin 13] - PB6 [pin 14] - PB7 [pin 15] - PB8 [pin 16] - PB9 [pin 17] - PC13 [pin 22] - PC14 [pin 23] - PC15 [pin 24] - RST [pin 37] - VBat [pin 21] ### U3 — [A7672SA LASE_](https://www.flux.ai/cherepanyadima/a7672sa-lase~7n.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/7559/A7672SA.pdf - Role Details: SIMCom A7672S LTE module; UART to STM32 and antenna to SMA - Manufacturer Part Number: A7672S - Symbol Style: Parametric - Manufacturer Name: SIMCom Wireless Solutions Limited - Part Type: RF Transceiver - Role: Cellular Module **Pins:** - ~PWRKEY [pin 1] - ~RESET [pin 16] - 1PPS [pin 100] - 1V8_GNSS [pin 97] - ADC [pin 25] - BT_ANT [pin 93] - CAM_I2C_SCL [pin 118] - CAM_I2C_SDA [pin 117] - CAM_MCLK [pin 121] - CAM_PWDN [pin 119] - CAM_RST [pin 120] - CAM_SPI_CLK [pin 124] - CAM_SPI_D0 [pin 122] - CAM_SPI_D1 [pin 123] - CTS [pin 7] - DCD [pin 5] - DTR [pin 3] - EAR_N [pin 41] - EAR_P [pin 40] - GND_1 [pin 2] - GND_1__1 [pin 17] - GND_1__10 [pin 61] - GND_1__11 [pin 62] - GND_1__12 [pin 63] - GND_1__13 [pin 64] - GND_1__14 [pin 65] - GND_1__2 [pin 18] - GND_1__3 [pin 29] - GND_1__4 [pin 39] - GND_1__5 [pin 45] - GND_1__6 [pin 46] - GND_1__7 [pin 54] - GND_1__8 [pin 58] - GND_1__9 [pin 59] - GND_2 [pin 69] - GND_2__1 [pin 70] - GND_2__10 [pin 79] - GND_2__11 [pin 80] - GND_2__12 [pin 81] - GND_2__13 [pin 82] - GND_2__14 [pin 83] - GND_2__2 [pin 71] - GND_2__3 [pin 72] - GND_2__4 [pin 73] - GND_2__5 [pin 74] - GND_2__6 [pin 75] - GND_2__7 [pin 76] - GND_2__8 [pin 77] - GND_2__9 [pin 78] - GND_3 [pin 84] - GND_3__1 [pin 85] - GND_3__2 [pin 86] - GND_3__3 [pin 87] - GND_3__4 [pin 88] - GND_3__5 [pin 89] - GND_3__6 [pin 91] - GND_3__7 [pin 92] - GND_3__8 [pin 94] - GNSS_ANT [pin 90] - GNSS_PWRCTL [pin 98] - GNSS_RXD [pin 96] - GNSS_TXD [pin 95] - GNSS_VBKP [pin 116] - GPIO1 [pin 19] - GPIO2 [pin 26] - GPIO3 [pin 48] - GPIO4 [pin 53] - I2C_SCL [pin 38] - I2C_SDA [pin 37] - LCD_BL_PWM [pin 101] - LCD_DCX [pin 107] - LCD_RST [pin 106] - LCD_SPI_CLK [pin 102] - LCD_SPI_CS [pin 105] - LCD_SPI_RXD [pin 104] - LCD_SPI_TXD [pin 103] - MIC_N [pin 43] - MIC_P [pin 42] - MK_IN_2 [pin 47] - MK_IN_3 [pin 20] - MK_IN_5 [pin 68] - MK_IN_6/I2C3_SCL [pin 36] - MK_OUT_2 [pin 44] - MK_OUT_3 [pin 21] - MK_OUT_5 [pin 67] - MK_OUT_6/I2C3_SDA [pin 35] - NC [pin 113] - NC__1 [pin 114] - NC__2 [pin 115] - NETLIGHT [pin 52] - RF_ANT [pin 60] - RI [pin 4] - RTS [pin 8] - RXD [pin 10] - SPI_CLK [pin 11] - SPI_CS [pin 12] - SPI_MISO [pin 14] - SPI_MOSI [pin 13] - STATUS [pin 66] - TXD [pin 9] - UART_LOG_RX [pin 22] - UART_LOG_TX [pin 23] - UART3_RXD [pin 49] - UART3_TXD [pin 50] - USB_BOOT [pin 6] - USB_DM [pin 28] - USB_DP [pin 27] - USIM1_CLK [pin 32] - USIM1_DATA [pin 31] - USIM1_DET [pin 34] - USIM1_RST [pin 33] - USIM1_VDD [pin 30] - USIM2_CLK [pin 109] - USIM2_DATA [pin 108] - USIM2_DET [pin 112] - USIM2_RST [pin 111] - USIM2_VDD [pin 110] - VBAT [pin 55] - VBAT__1 [pin 56] - VBAT__2 [pin 57] - VBAT_ADC [pin 51] - VBUS [pin 24] - VDD_1V8 [pin 15] - VDD_2V8 [pin 99] ### U4 — [PC817C](https://www.flux.ai/lcsc/pc817c~nbmh.md) - Role Details: 5kVrms optocoupler; LED driven from PA1 through R10 - Product Info Url: https://lcsc.com/product-detail/DIP-Optocouplers_PC817C_C115500.html - Manufacturer Part Number: PC817C - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809251512_Wuxi-China-Resources-Huajing-Microelectronics-PC817C_C115500.pdf - Part Type: Optocouplers - Phototransistor Output - Role: Isolation - Package or Case Code: DIP-4_L4.6-W6.5-P2.54-LS7.6-BL - Manufacturer Name: 华润华晶 - JLCPCB Part Class: Extended Part - LCSC Part Number: C115500 **Pins:** - AN [pin 1] - CAT [pin 2] - COL [pin 4] - EM [pin 3] ### U5 — [ULN2003AS16-13](https://www.flux.ai/lcsc/uln2003as16-13~aj3z.md) - Manufacturer Part Number: ULN2003AS16-13 - LCSC Part Number: C164883 - Package or Case Code: SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL - Manufacturer Name: DIODES(美台) - Role Details: Use input 1B and output 1C; COM to 12V switching for clamp diodes - Part Type: Darlington Transistor Arrays - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Others_Diodes-Incorporated_ULN2003AS16-13_Diodes-Incorporated-ULN2003AS16-13_C164883.html - Role: Relay Driver - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf **Pins:** - 1B [pin 1] - 1C [pin 16] - 2B [pin 2] - 2C [pin 15] - 3B [pin 3] - 3C [pin 14] - 4B [pin 4] - 4C [pin 13] - 5B [pin 5] - 5C [pin 12] - 6B [pin 6] - 6C [pin 11] - 7B [pin 7] - 7C [pin 10] - COM [pin 9] - E [pin 8] ### U6 — [DS18B20](https://www.flux.ai/lcsc/ds18b20~7kh.md) - Part Type: Temperature Sensors - LCSC Part Number: C376006 - JLCPCB Part Class: Extended Part - Role: Temperature Sensor - Manufacturer Part Number: DS18B20 - Manufacturer Name: UMW(友台半导体) - Role Details: DS18B20 on PA2 with 4.7k pull-up to 3.3V - Package or Case Code: TO-92-3_L4.9-W3.7-P1.27-L **Pins:** - DQ [pin 2] - GND [pin 1] - VDD [pin 3] ### U7 — [DHT22](https://www.flux.ai/vasy_skral/dht22~ju8.md) - Manufacturer Name: Asair - License: https://creativecommons.org/licenses/by/4.0/ - Role: Humidity Sensor - Role Details: DHT22 on PA3 with 10k pull-up to 3.3V - Part Type: Sensor - Package or Case Code: Module - Manufacturer Part Number: DHT22 - Datasheet URL: https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf - Symbol Style: Parametric **Pins:** - DATA [pin 2] - GND [pin 4] - NULL [pin 3] - VDD [pin 1] ### U8 — [ACS724LLCTR-20AB-T-HX](https://www.flux.ai/lcsc/acs724llctr-20ab-t-hx~0h4n.md) - Manufacturer Name: ZHHXDZ(海芯电子) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: ACS724LLCTR-20AB-T-HX - Package or Case Code: SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL - LCSC Part Number: C52034468 - Role: Current Sensor - Role Details: ACS724 current sensor; VIOUT to STM32 PA0 ADC **Pins:** - GND [pin 5] - IP- [pin 3] - IP- [pin 4] - IP+ [pin 1] - IP+ [pin 2] - OUT [pin 7] - VCC [pin 8] - VZCR [pin 6] ### U9 — [LMR33630BDDA](https://www.flux.ai/lcsc/lmr33630bdda~fgx.md) - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: LMR33630BDDA - Role Details: 12V to 5V rail for A7672S; needs validated external LC and feedback network - Part Type: DC-DC Converters - Role: Buck Regulator - Package or Case Code: POWERPAD-SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EP - JLCPCB Part Class: Extended Part - LCSC Part Number: C1355643 **Pins:** - BOOT [pin 7] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 4] - PGND [pin 1] - SW [pin 8] - VCC [pin 6] - VIN [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/harsh9237/glecs-v4-motor-controller~xz](https://www.flux.ai/harsh9237/glecs-v4-motor-controller~xz).* --- *Generated from [https://www.flux.ai/harsh9237/glecs-v4-motor-controller~xz](https://www.flux.ai/harsh9237/glecs-v4-motor-controller~xz)*