ClearBell V0.2 Innen
akoerner-dev·ClearBell·hardware/Inneneinheit/ClearBell_V0.2_Innen.kicad_pcb
About the ClearBell V0.2 Innen PCB
ClearBell V0.2 Innen is an open source ESP32 PCB design by akoerner-dev, published on GitHub under the MIT license. It is a 4-layer board measuring 98 × 60 mm, with 33 components from 23 distinct parts.
Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the TLV62568DBVR, MAX98357AETE+T and IM72D128V01. By type, the board carries 4 ICs, 1 LED and 1 inductor.
It belongs with the audio, iot & wireless and dev boards & breakouts designs in this gallery.
From the project
Selbst entwickeltes ESP32-Klingelsystem fuer ein Zweifamilienhaus - KiCad-Hardware und Arduino-Firmware (WLAN/UDP, HMAC-gesichert).
Selbst entwickeltes Türklingelsystem für ein Zweifamilienhaus — vollständig eigenentwickelt von der Schaltung über das PCB-Layout bis zur Firmware. Das Projekt dokumentiert nicht nur was gebaut wurde, sondern die begründeten Technikentscheidungen dahinter.
Aktuelle Generation: V0.2 — Redesign auf den ESP32-S3. Beide Platinen sind fertig verlegt, geprüft und werden bei PCBWay gefertigt und bestückt. Die erste Generation läuft im Haus und liegt im Archiv.

Main components on the ClearBell V0.2 Innen
ClearBell V0.2 Innen bill of materials (BOM)
33 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TLV62568DBVR Texas Instruments | SOT-23-5 | U1 |
| 1 | ESP32-S3-WROOM-1-N16R8 Espressif | ESP32-S3-WROOM-1 | U2 |
| 1 | MAX98357AETE+T Analog Devices | QFN50P300X300X80-17N | U3 |
| 1 | IM72D128V01 Infineon | IFX-PG-LLGA-5-4 | U4 |
| 1 | 1u | C_0603_1608Metric | C_EN1 |
| 5 | 100n | C_0603_1608Metric | C_ESD_USB1, C_HF1, C_HF2, C_MIC1, C_VDD_AMP2 |
| 1 | 15p | C_0603_1608Metric | C_FF1 |
| 3 | 10u | C_0805_2012Metric | C_IN1, C_OUT1, C_VDD_AMP1 |
| 1 | 22u | C_0805_2012Metric | C_MOD1 |
| 1 | ESD9L5.0ST5G | D_SOD-923 | D_ESD_TCH1 |
| 1 | USBLC6-4SC6 | SOT-23-6 | D_ESD_USB1 |
| 1 | USB4105-GF-A-120 | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J_USB1 |
| 2 | 10k | R_0603_1608Metric | R_BOOT1, R_EN1 |
| 2 | 5k1 | R_0603_1608Metric | R_CC1, R_CC2 |
| 1 | 40k2 | R_0603_1608Metric | R_FBB1 |
| 1 | 180k | R_0603_1608Metric | R_FBT1 |
| 2 | 750R | R_0603_1608Metric | R_LED_G1, R_LED_R1 |
| 1 | 100 | R_0603_1608Metric | R_MIC_DATA1 |
| 1 | 100k | R_0603_1608Metric | R_SDMODE1 |
| 1 | 1k | R_0603_1608Metric | R_TOUCH1 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | EVP-BD6C1A000 | EVP-BD6C1A000 | S_BOOT1, S_RST1 |
| 1 | APHBM2012LSURKCGKC Kingbright | LED_Kingbright_APHBM2012_2x1.25mm | LED1 |
| 1 | SDER041H-2R2MS 2.2u Cyntec | L_Cyntec_SDER041H_4.0x4.0x1.8mm | L1 |
ClearBell V0.2 Innen design files
The KiCad project lives in the akoerner-dev/ClearBell repository on GitHub; these links point at the commit this page was built from.
ClearBell V0.2 Innen: common questions
What microcontroller does the ClearBell V0.2 Innen use?
The ClearBell V0.2 Innen is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.
How big is the ClearBell V0.2 Innen PCB?
The ClearBell V0.2 Innen measures 98 × 60 mm, has 4 copper layers and is 1.561 mm thick.
How many components are on the ClearBell V0.2 Innen?
33 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the ClearBell V0.2 Innen design files?
From the akoerner-dev/ClearBell repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ClearBell V0.2 Innen design in my own project?
Yes, under the terms of its MIT license, which akoerner-dev chose for the repository.
Can I test firmware for the ClearBell V0.2 Innen 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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