# Deep Work Timer using ATtiny85 ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** singhrohan - **Created:** 8/27/2024 - **Last Updated:** 1/22/2026 - **Visibility:** Public ## Key Components ### IC1 — [NPM1300-QEAA-R7](https://www.flux.ai/adrian95/npm1300-qeaa-r7~zb.md) - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: NPM1300-QEAA-R7 - Package or Case Code: QFN50P500X500X90-33N - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6443/NPM1300-QEAA-R7.pdf - Manufacturer Name: Nordic Semiconductor **Pins:** - AVSS [pin 33] - CC1 [pin 23] - CC2 [pin 24] - GPIO0 [pin 7] - GPIO1 [pin 8] - GPIO2 [pin 9] - GPIO3 [pin 10] - GPIO4 [pin 11] - LED0 [pin 25] - LED1 [pin 26] - LED2 [pin 27] - LSIN1/VINLDO1 [pin 28] - LSIN2/VINLDO2 [pin 30] - LSOUT1/VOUTLDO1 [pin 29] - LSOUT2/VOUTLDO2 [pin 31] - NTC [pin 18] - PVDD [pin 4] - PVSS1 [pin 2] - PVSS2 [pin 6] - SCL [pin 14] - SDA [pin 13] - SHPHLD [pin 15] - SW1 [pin 3] - SW2 [pin 5] - VBAT [pin 19] - VBUS [pin 21] - VBUSOUT [pin 22] - VDDIO [pin 12] - VOUT1 [pin 1] - VOUT2 [pin 32] - VSET1 [pin 17] - VSET2 [pin 16] - VSYS [pin 20] ### U1 — [HLK-LD2410C-P](https://www.flux.ai/adrian95/hlk-ld2410c-p~a12.md) - Manufacturer Part Number: HLK-LD2410C-P - Part Type: Module - LCSC Part Number: C19723500 - Datasheet URL: https://www.lcsc.com/datasheet/C19723500.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: HI-LINK **Pins:** - GND [pin 4] - OUT [pin 3] - RXD [pin 2] - TXD [pin 1] - VCC [pin 5] ### U2 — [ESP32-C6-MINI-1-N4](https://www.flux.ai/vasyl/esp32-c6-mini-1-n4~0jh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-c6-mini-1_mini-1u_datasheet_en.pdf - Manufacturer Part Number: ESP32-C6-MINI-1-N4 - Manufacturer Name: Espressif Systems - Part Type: RF module **Pins:** - 3V3 [pin 3] - EN [pin 8] - GND_1 [pin 1] - GND_1__1 [pin 2] - GND_1__10 [pin 42] - GND_1__11 [pin 43] - GND_1__12 [pin 44] - GND_1__13 [pin 45] - GND_1__14 [pin 46] - GND_1__2 [pin 11] - GND_1__3 [pin 14] - GND_1__4 [pin 36] - GND_1__5 [pin 37] - GND_1__6 [pin 38] - GND_1__7 [pin 39] - GND_1__8 [pin 40] - GND_1__9 [pin 41] - GND_2 [pin 47] - GND_2__1 [pin 48] - GND_2__10 [pin 49_9] - GND_2__11 [pin 50] - GND_2__12 [pin 51] - GND_2__13 [pin 52] - GND_2__14 [pin 53] - GND_2__2 [pin 49_1] - GND_2__3 [pin 49_2] - GND_2__4 [pin 49_3] - GND_2__5 [pin 49_4] - GND_2__6 [pin 49_5] - GND_2__7 [pin 49_6] - GND_2__8 [pin 49_7] - GND_2__9 [pin 49_8] - IO0 [pin 12] - IO1 [pin 13] - IO12 [pin 17] - IO13 [pin 18] - IO14 [pin 19] - IO15 [pin 20] - IO18 [pin 24] - IO19 [pin 25] - IO2 [pin 5] - IO20 [pin 26] - IO21 [pin 27] - IO22 [pin 28] - IO23 [pin 29] - IO3 [pin 6] - IO4 [pin 9] - IO5 [pin 10] - IO6 [pin 15] - IO7 [pin 16] - IO8 [pin 22] - IO9 [pin 23] - NC [pin 21] - NC [pin 4] - NC__1 [pin 7] - NC__5 [pin 32] - NC__6 [pin 33] - NC__7 [pin 34] - NC__8 [pin 35] - RXD0 [pin 30] - TXD0 [pin 31] ### U3 — [STHS34PF80TR](https://www.flux.ai/adrian95/sths34pf80tr~1d0.md) - Datasheet URL: https://www.st.com/resource/en/datasheet/sths34pf80.pdf - Part Type: Sensor - Manufacturer Part Number: STHS34PF80TR - Manufacturer Name: STMicroelectronics NV - Package or Case Code: XDCR_STHS34PF80TR - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - CS [pin 3] - GND [pin 7] - GND__1 [pin 8] - INT [pin 10] - NC [pin 5] - RES [pin 2] - SCL/SPC [pin 1] - SDA/SDI/O [pin 4] - VDD [pin 6] - VDD__1 [pin 9] ### U4 — [BH1750FVI-TR](https://www.flux.ai/adrian95/bh1750fvi-tr~koh.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BH1750FVI-TR - Datasheet URL: https://www.mouser.com/datasheet/2/348/Rohm_11162017_ROHMS34826-1-1279292.pdf - Manufacturer Name: Rohm Semiconductor - Part Type: Sensor **Pins:** - ADDR [pin 2] - DVI [pin 5] - GND [pin 3] - SCL [pin 6] - SDA [pin 4] - VCC [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/singhrohan/deep-work-timer-using-attiny85~f2](https://www.flux.ai/singhrohan/deep-work-timer-using-attiny85~f2).* --- *Generated from [https://www.flux.ai/singhrohan/deep-work-timer-using-attiny85~f2](https://www.flux.ai/singhrohan/deep-work-timer-using-attiny85~f2)*