# LED barebone watch ## Description Just led watch with 24 LEDs serving hour-hand powered by STM32 on board. #stm32 #led #iot #watch ## Project Details - **Owner:** vasyl - **Created:** 5/10/2022 - **Last Updated:** 3/30/2023 - **Visibility:** Public - **Copies:** 1 ## Key Components ### J1 — [CR1220](https://www.flux.ai/vasyl/cr1220.md) - Part Type: Connector **Pins:** - ~ [pin -] - ~ [pin +$1] - ~ [pin +$2] ### LED1 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED10 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED11 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED12 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED13 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED14 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED15 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED16 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED17 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED18 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED19 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED20 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED21 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED22 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED23 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED24 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED4 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED5 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED6 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED7 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED8 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED9 — [LED-0402-Template](https://www.flux.ai/vasyl/led-0402-template.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### SW1 — [B3U-3000P](https://www.flux.ai/vasyl/b3u-3000p.md) - Manufacturer Name: Omron Electronics Inc-EMC Div - Manufacturer Part Number: B3U-3000P - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3u.pdf - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [B3U-3000P](https://www.flux.ai/vasyl/b3u-3000p.md) - Manufacturer Part Number: B3U-3000P - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3u.pdf - Part Type: Switch - Manufacturer Name: Omron Electronics Inc-EMC Div **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [STM32F411CCU6TR](https://www.flux.ai/vasyl/stm32f411ccu6tr.md) - Manufacturer Name: STMicroelectronics - Datasheet URL: http://www.st.com/content/ccc/resource/technical/document/datasheet/b3/a5/46/3b/b4/e5/4c/85/DM00115249.pdf/files/DM00115249.pdf/jcr:content/translations/en.DM00115249.pdf - Part Type: Microcontroller - Manufacturer Part Number: STM32F411CCU6TR **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] - 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] - PH0 [pin 5] - PH1 [pin 6] - VBAT [pin 1] - VCAP1 [pin 22] - VDD [pin 24] - VDD [pin 48] - VDD [pin 36] - VDDA [pin 9] - VSS [pin 47] - VSS [pin 49] - VSS [pin 23] - VSS [pin 35] - VSSA [pin 8] ### Y2 — [AB26TRB-32.768KHZ-T](https://www.flux.ai/vasyl/ab26trb-32768khz-t.md) - Manufacturer Part Number: AB26TRB-32.768KHZ-T - Datasheet URL: https://abracon.com/Resonators/AB26TRB.pdf - Part Type: Crystal - Manufacturer Name: Abracon LLC **Pins:** - ~ - ~ *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasyl/led-barebone-watch](https://www.flux.ai/vasyl/led-barebone-watch).* --- *Generated from [https://www.flux.ai/vasyl/led-barebone-watch](https://www.flux.ai/vasyl/led-barebone-watch)*