# Wild Sapphire Carbonite Freezer ## Description Board Layout Draft – Component Placement Pending Review of Size & Mounting ## Project Details - **Owner:** timix20 - **Created:** 12/16/2025 - **Last Updated:** 4/13/2026 - **Visibility:** Public - **Operating Voltage:** 5V - **License:** https://creativecommons.org/licenses/by/4.0/ - **Reference Design URL:** https://eepower.com/circuit-collections/pir-sensor-555-timer-counter-using-cd4026-and-7-segment-display/ - **Board Dimensions:** 100.0 mm x 70.0 mm - **Power Requirements:** Battery - **Human Interface:** Display - **Domain:** Consumer Electronics - **System Architecture:** flowchart TD PIRSensor[PIR Sensor] NPN[NPN Transistor Interface] NE555[NE555 Monostable] CD4026[CD4026B Counter] Display[7-Segment Display] ResetBtn[Pushbutton Reset] PIRSensor --> NPN NPN --> NE555 NE555 --> CD4026 CD4026 --> Display ResetBtn -->|Manual Reset| CD4026 - **PCB Stackup:** 4 Layer with Inner Planes (VCC = L2, GND = L3) - **Manufacturing Quantity Target:** 5 - **Connectivity:** USB - **Stars:** 1 ## Key Components ### DS1 — [SSD1315](https://www.flux.ai/jecstronic/ssd1315~10v.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module **Pins:** - GND [pin 1] - SCL [pin 3] - SDA [pin 4] - VDD [pin 2] ### M1 — [INMP441](https://www.flux.ai/vasyl/inmp441~ltf.md) - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2015/02/INMP441.pdf?ref_disty=digikey - Manufacturer Part Number: INMP441 - Manufacturer Name: TDK InvenSense - Part Type: Microphone - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 1] - L/R [pin 4] - SCK [pin 6] - SD [pin 3] - VDD [pin 2] - WS [pin 5] ### M2 — [INMP441](https://www.flux.ai/vasyl/inmp441~ltf.md) - Manufacturer Part Number: INMP441 - Manufacturer Name: TDK InvenSense - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2015/02/INMP441.pdf?ref_disty=digikey - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Microphone **Pins:** - GND [pin 1] - L/R [pin 4] - SCK [pin 6] - SD [pin 3] - VDD [pin 2] - WS [pin 5] ### SW1 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### SW2 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### SW3 — [SWITCH-PUSH-6mm-H5mm-4pin](https://www.flux.ai/baronunread/switch-push-6mm-h5mm-4pin~4u.md) - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1-1 [pin 1-1] - 1-2 [pin 1-2] - 2-1 [pin 2-1] - 2-2 [pin 2-2] ### U1 — [INMP441 MEMS](https://www.flux.ai/adrian95/inmp441-mems~b4r.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Manufacturer Name: InvenSense - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2015/02/INMP441.pdf - Manufacturer Part Number: INMP441 **Pins:** - GND [pin 6] - L/R [pin 3] - SCK [pin 1] - SD [pin 4] - VCC [pin 5] - WS [pin 2] ### U4 — [ESP32-C3 SuperMini](https://www.flux.ai/jecstronic/esp32-c3-supermini~pzl.md) - Manufacturer Name: Texas Instruments Inc. - Part Type: Module - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf - Manufacturer Part Number: ESP32-C3_SUPERMINI **Pins:** - 3V3 [pin 3.3] - 5V [pin 5V] - GND [pin G] - GPIO0 [pin 0] - GPIO1 [pin 1] - GPIO10 [pin 10] - GPIO2 [pin 2] - GPIO20 [pin 20] - GPIO21 [pin 21] - GPIO3 [pin 3] - GPIO4 [pin 4] - GPIO5 [pin 5] - GPIO6 [pin 6] - GPIO7 [pin 7] - GPIO8 [pin 8] - GPIO9 [pin 9] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/timix20/wild-sapphire-carbonite-freezer~jj](https://www.flux.ai/timix20/wild-sapphire-carbonite-freezer~jj).* --- *Generated from [https://www.flux.ai/timix20/wild-sapphire-carbonite-freezer~jj](https://www.flux.ai/timix20/wild-sapphire-carbonite-freezer~jj)*