# Circular Amber Electronic Thumb ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** darkfexy - **Created:** 9/4/2025 - **Last Updated:** 9/5/2025 - **Visibility:** Public ## Key Components ### — [BQ21040DBVR](https://www.flux.ai/ehaga7/bq21040dbvr.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq21040.pdf?HQS=dis-dk-null-digikeymode-dsf-pf-null-wwe&ts=1700449545945&ref_url=https%253A%252F%252Fwww.ti.com%252Fgeneral%252Fdocs%252Fsuppproductinfo.tsp%253FdistId%253D10%2526gotoUrl%253Dhttps%253A%252F%252Fwww.ti.com%252Flit%252Fgpn%252Fbq21040 - Manufacturer Name: Texas Instruments - Part Type: Power Management - Max Input Voltage: 30V - Max Output Voltage: 7V - Manufacturer Part Number: BQ21040DBVR **Pins:** - CHRG - GND - ISET - TS - VIN - VOUT ### F2 — [SG90](https://www.flux.ai/adrian95/sg90.md) - Manufacturer Part Number: SG90 - Datasheet URL: https://www.littelfuse.com/media?resourcetype=datasheets&itemid=71d0e91e-b981-469d-9f85-a8cdf3569a15&filename=littelfuse_gdt_sg_datasheet.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Circuit Protection - Manufacturer Name: Littelfuse Inc. **Pins:** - P1 [pin 1] - P2 [pin 2] ### J6 — [HR911105A](https://www.flux.ai/jecstronic/hr911105a.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811141815_HANRUN-Zhongshan-HanRun-Elec-HR911105A_C12074.pdf - Manufacturer Part Number: HR911105A - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Manufacturer Name: HANRUN **Pins:** - ~ [pin 12] - ~ [pin 3] - ~ [pin 10] - ~ [pin 2] - ~ [pin 5] - ~ [pin 8] - ~ [pin 9] - ~ [pin 1] - ~ [pin 6] - ~ [pin 4] - ~ [pin 11] - SHIELD [pin 15] - SHIELD [pin 16] ### J7 — [Pin Header 01x03 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical.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] ### LED1 — [MTSM0074-843-IR](https://www.flux.ai/jecstronic/mtsm0074-843-ir.md) - Part Type: LED - Manufacturer Part Number: MTSM0074-843-IR - Manufacturer Name: Marktech Optoelectronics - Datasheet URL: https://specs.marktechopto.com/pdf/products/datasheet/MTSM0074-843-IR.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [MTSM0074-843-IR](https://www.flux.ai/jecstronic/mtsm0074-843-ir.md) - Manufacturer Part Number: MTSM0074-843-IR - Manufacturer Name: Marktech Optoelectronics - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://specs.marktechopto.com/pdf/products/datasheet/MTSM0074-843-IR.pdf - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### M1 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### M2 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### M3 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### M4 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### M5 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### M6 — [DC Motor](https://www.flux.ai/vasyl/dc-motor.md) **Pins:** - - - + ### U1 — [L298N](https://www.flux.ai/vasy_skral/l298n.md) - Manufacturer Part Number: L298N - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/82/cc/3f/39/0a/29/4d/f0/CD00000240.pdf/files/CD00000240.pdf/jcr:content/translations/en.CD00000240.pdf - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: Parametric **Pins:** - ENA [pin 6] - ENB [pin 11] - GND [pin 8] - IN1 [pin 5] - IN2 [pin 7] - IN3 [pin 10] - IN4 [pin 12] - OUT1 [pin 2] - OUT2 [pin 3] - OUT3 [pin 13] - OUT4 [pin 14] - SENSE_A [pin 1] - SENSE_B [pin 15] - VS [pin 4] - VSS [pin 9] ### U2 — [L298N](https://www.flux.ai/jecstronic/l298n.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.snapeda.com/parts/L298N/STMicroelectronics/datasheet/ - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics NV - Manufacturer Part Number: L298N **Pins:** - ENA [pin 6] - ENB [pin 11] - GND [pin 8] - IN1 [pin 5] - IN2 [pin 7] - IN3 [pin 10] - IN4 [pin 12] - OUT1 [pin 2] - OUT2 [pin 3] - OUT3 [pin 13] - OUT4 [pin 14] - SENSE_A [pin 1] - SENSE_B [pin 15] - VS [pin 4] - VSS [pin 9] ### U3 — [L298N](https://www.flux.ai/vasy_skral/l298n.md) - Symbol Style: Parametric - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: STMicroelectronics - Part Type: Integrated Circuit - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/82/cc/3f/39/0a/29/4d/f0/CD00000240.pdf/files/CD00000240.pdf/jcr:content/translations/en.CD00000240.pdf - Manufacturer Part Number: L298N **Pins:** - ENA [pin 6] - ENB [pin 11] - GND [pin 8] - IN1 [pin 5] - IN2 [pin 7] - IN3 [pin 10] - IN4 [pin 12] - OUT1 [pin 2] - OUT2 [pin 3] - OUT3 [pin 13] - OUT4 [pin 14] - SENSE_A [pin 1] - SENSE_B [pin 15] - VS [pin 4] - VSS [pin 9] ### U4 — [LM2596DSADJR4G](https://www.flux.ai/adrian95/lm2596dsadjr4g.md) - Part Type: Integrated Circuit - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf - Manufacturer Part Number: LM2596DSADJR4G **Pins:** - ~ON~/OFF [pin 5] - EPAD [pin 6] - FB [pin 4] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] ### U5 — [LM2596DSADJR4G](https://www.flux.ai/adrian95/lm2596dsadjr4g.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf - Manufacturer Part Number: LM2596DSADJR4G - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - ~ON~/OFF [pin 5] - EPAD [pin 6] - FB [pin 4] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] ### U6 — [LM2596DSADJR4G](https://www.flux.ai/adrian95/lm2596dsadjr4g.md) - Manufacturer Part Number: LM2596DSADJR4G - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Part Type: Integrated Circuit **Pins:** - ~ON~/OFF [pin 5] - EPAD [pin 6] - FB [pin 4] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] ### US1 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04.md) - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Part Type: Sensor - Manufacturer Part Number: HC-SR04 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] ### US2 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04.md) - Manufacturer Part Number: HC-SR04 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Part Type: Sensor **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] ### US3 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04.md) - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: HC-SR04 **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] ### US4 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04.md) - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: HC-SR04 **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/darkfexy/circular-amber-electronic-thumb](https://www.flux.ai/darkfexy/circular-amber-electronic-thumb).* --- *Generated from [https://www.flux.ai/darkfexy/circular-amber-electronic-thumb](https://www.flux.ai/darkfexy/circular-amber-electronic-thumb)*