Unni smartification c6
About the Unni smartification c6 PCB
Unni smartification c6 is an open source ESP32 PCB design by lk-ek, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 46 × 32 mm, with 71 components from 38 distinct parts.
Its main chip is the ESP32-C6-MINI-1-N4, from the ESP32 family. Other key parts include the MCP73831T-2ACI/OT, TPS63031DSKR, TPS613222ADBZR and TPD2E009DBZR. By type, the board carries 28 resistors, 18 capacitors, 7 connectors, 5 ICs, 5 transistors and 3 diodes.
It belongs with the sensors, iot & wireless and power & battery designs in this gallery.
From the project
An esp32-c3 based passive data sniffer for Unni CO2 sensor devices
Target: KiCad 10.99 nightly or newer. The current manufacturing master uses a 4-layer stackup and native KiCad 10.99 geometric constraints.
This repository contains two physical PCBs in one KiCad PCB file so cross-board connectivity remains visible while routing. Placement and routing are still work in progress; the schematic and power architecture are substantially defined and covered by reproducible connectivity/SPICE checks.
Main components on the Unni smartification c6
Unni smartification c6 bill of materials (BOM)
71 components, 38 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP73831T-2ACI/OT MCP73831 Microchip Technology | SOT-23-5_HandSoldering | U1 |
| 1 | TPS63031DSKR TPS63031 Texas Instruments | WSON-10-1EP_2.5x2.5mm_P0.5mm_EP1.2x2mm | U2 |
| 1 | TPS613222ADBZR TPS613222ADBV Texas Instruments | SOT-23-5 | U3 |
| 1 | TPD2E009DBZR Texas Instruments | SOT-23_Handsoldering | U4 |
| 1 | ESP32-C6-MINI-1-N4 Espressif Systems | ESP32-C6-MINI-1 | U10 |
| 2 | AO3401A Alpha & Omega Semiconductor | SOT-23_Handsoldering | Q1, Q2 |
| 3 | AO3400A Alpha & Omega Semiconductor | SOT-23_Handsoldering | Q3, Q4, Q10 |
| 1 | UJ20-C-H-G-SMT-1-P16-TR Same Sky | SAMESKY_UJ20-C-H-G-SMT-1-P16-TR | J1 |
| 1 | B2B-PH-K-S (LF)(SN) B2B-PH-K-S JST | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 2 | B6B-PH-K-S (LF)(SN) B6B-PH-K-S JST | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J3, J10 |
| 1 | S3B-PH-SM4-TB(LF)(SN) S3B-PH-SM4-TB JST | JST_PH_S3B-PH-SM4-TB_1x03-1MP_P2.00mm_Horizontal | J4 |
| 1 | B3B-PH-K-S (LF)(SN) B3B-PH-K-S JST | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J5 |
| 1 | B5B-PH-K-S (LF)(SN) B5B-PH-K-S JST | JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical | J6 |
| 1 | NTCC-10K SR Passives | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | RT1 |
| 1 | TVAF36-N014JW-R RST Jianfu | SW_Jianfu_TVAF36-N014JW-R_HandSolder | SW1 |
| 1 | TVAF36-N014JW-R BOOT Jianfu | SW_Jianfu_TVAF36-N014JW-R_HandSolder | SW2 |
| 3 | SS14 onsemi | D_SMA_Handsoldering | D1, D3, D4 |
| 1 | LQH3NPN2R2MJRL 2.2uH Murata | L_Murata_LQH3NPN_3.0x3.0mm_HandSolder | L1 |
| 1 | DFE322520FD-2R2M=P2 2.2uH Murata | L_Murata_DFE322520FD_3.2x2.5mm_HandSolder | L2 |
| 2 | CL21A475KAQNNNE 4.7uF Samsung Electro-Mechanics | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | CL21A106KAYNNNE 10uF Samsung Electro-Mechanics | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5, C6, C7 |
| 5 | CL10B104KB8NNNC 100nF Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C11, C20, C21, C22 |
| 1 | CL21A226KPCLRNC 22uF Samsung Electro-Mechanics | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | CL10A105KB8NNNC 1uF Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | CL10A106MQ8NNNC 10uF Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 2 | CL10C220JB8NNNC 22pF DNP Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12, C13 |
| 1 | CL10B221KB8NNNC 220pF Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C32 |
| 1 | CL10B103KB8NNNC 10nF DNP Samsung Electro-Mechanics | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C33 |
| 3 | RC0805FR-075K1L 5.1k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3 |
| 2 | RC0805FR-07100KL 100k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R52 |
| 5 | RC0805FR-071ML 1M Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7, R9, R30, R31 |
| 4 | RC0805FR-0710KL 10k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R20, R21, R34 |
| 1 | RC0805FR-07150KL 150k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11 |
| 4 | RC0805FR-07220KL 220k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R32, R33, R51 |
| 1 | RC0805FR-0747KL 47k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13 |
| 2 | RC0805FR-0722RL 22R Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22, R23 |
| 5 | RC0603FR-0710KL 10k Yageo | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R24, R40, R41, R42, R43 |
| 1 | RC0805FR-07330KL 330k Yageo | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R50 |
Unni smartification c6 design files
The KiCad project lives in the lk-ek/esphome-unni-co2-sniffer repository on GitHub; these links point at the commit this page was built from.
Unni smartification c6: common questions
What microcontroller does the Unni smartification c6 use?
The Unni smartification c6 is built around the ESP32-C6-MINI-1-N4, from the ESP32 family.
How big is the Unni smartification c6 PCB?
The Unni smartification c6 measures 46 × 32 mm, has 4 copper layers and is 1 mm thick.
How many components are on the Unni smartification c6?
71 components, from 38 distinct parts. The full bill of materials is listed on this page.
Where can I download the Unni smartification c6 design files?
From the lk-ek/esphome-unni-co2-sniffer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Unni smartification c6 design in my own project?
Yes, under the terms of its GPL-3.0 license, which lk-ek chose for the repository.
Can I test firmware for the Unni smartification c6 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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