

Kitchen clock
This project is building a kitchen glock with the following functions:
- Size
- 66.9 × 110 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 83
- Pads
- 269
- Tracks, vias
- 671, 104
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 30 Apr 2024
- Updated
- 14 Feb 2025
Overview
Kitchen clock is an open-source printed circuit board by chof747, from the chof747/kitchen-clock repository on GitHub. It is a 2-layer board of 66.9 × 110 mm with 74 parts on 83 nets, routed with 671 tracks and 104 vias.
It is built around the ESP32-S3-WROOM-1-N8R8, ADS1115IDGS and MT3608, with the CN3058E, HY2112-CB and ME6211C33M5G-N among its other parts. Its parts include 28 resistors, 12 capacitors, 8 ICs, 8 transistors and 8 connectors. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
12ESP32-S3-WROOM-1-N8R8
SMD,25.5x18mm-104.5dBm -40℃~+65℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3R8 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorisedMT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC ConvertersCN3058E
SOP-8-EP-40℃~+85℃ 1 1A 3.6V 3.8V~6V 3uA LiFePO4 Battery Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、欠压锁定 SOP-8-EP Battery Management ROHSShangHai Consonance ElecBattery ManagementHY2112-CB
SOT-23-6-40℃~+85℃ 1 1.5V~8V 100nA 2.1V LiFePO4 Battery Protection IC Support SOT-23-6 Battery Management ROHSHYCON TechBattery ManagementME6211C33M5G-N
SOT-23-5-40℃~+150℃ 1 120mV@(100mA) 3.3V 500mA 50uVrms 60uA 6V 70dB@(1kHz) Fixed Over Current Protection、Enable、Short Circuit Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMICRONEVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)SS8050-G
SOT-231 NPN 1.5A 100 100MHz 100nA 25V 300mW 400mV 5V NPN SOT-23 Bipolar (BJT) ROHSComchipBipolar (BJT)AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsBH-18650-B1BA002
--25~85℃ 18650 Battery holder Gold plating Phosphor bronze - Batter Holder ROHSMYOUNGButton And Strip Battery ConnectorFS8205
SOT-23-6-55℃~+150℃ 1.2V 1W 2 N-Channel 20V 37mΩ@2.5V 6A N-Channel SOT-23-6 MOSFETs ROHSFORTUNEMOSFETsSS34A
SMA(DO-214AC)3A 40V 500mV@3A 500uA@40V 80A Standalone SMA(DO-214AC) Schottky Diodes ROHSGuangdong HottechSchottky Diodes
README
README.mdKitchen Clock Project
This project is building a kitchen glock with the following functions:
- Servo driven largely visible glock gauge
- Alarm functions that can be sequenced easily
- Temperature control of a stove or oven
- Integration into home automation systems with HA and/or MQTT
- Ringing alarm function
the project will contain all the necessary electrical and housing components.
PCB
v1.0: Initial version of PCB sent to production on 22.07.2024
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R4, R7, R8, R9, R17, R19, R22, R25, R26 |
| 8 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R12, R14, R15, R16, R18, R20, R21 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C6, C8, C9 |
| 3 | 2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R23, R24 |
| 3 | SS8050-G | Package_TO_SOT_SMD:SOT-23 | Q4, Q5, Q6 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C12 |
| 2 | 20p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C11 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27, R28 |
| 2 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C5 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q7, Q8 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 0R1 | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R5 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | 22uH | Chof747 Footprints:SMD0740 | L1 |
| 1 | 2k4 / 1k2 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 7k5 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U4 |
| 1 | BH-18650-B1BA002 | Chof747 Footprints:BH18650B1BA002 | BAT1 |
| 1 | Buzzer | Chof747 Footprints:PS1240P02BT | BZ1 |
| 1 | CN3058E | Chof747 Footprints:SOIC127P600X175-9N | IC1 |
| 1 | CONN_DISPL | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J6 |
| 1 | CONN_ENC | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J5 |
| 1 | CONN_MOD | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J4 |
| 1 | CONN_PGR | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J8 |
| 1 | CONN_SERVO | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J7 |
| 1 | ESP32-S3-WROOM-1-N8R8 | Chof747 Footprints:ESP32S3WROOM1N8R8 | IC3 |
| 1 | FS8205 | Chof747 Footprints:FS8205 | Q1 |
| 1 | HY2112 | Chof747 Footprints:SOT95P280X145-6N | IC2 |
| 1 | INA219AxD | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | LOGO | Chof747 Logos:LOGO large | G*** |
| 1 | ME6211C33M5G-N | Chof747 Footprints:SOT95P270X145-5N | IC4 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | Reset | Chof747 Footprints:1TS003B-2500-3500A-CT (SMD Right Angle Tactile Switch) | SW2 |
| 1 | SS34A | Chof747 Footprints:DIOM5026X262N | D1 |
| 1 | SW_SPDT | Chof747 Footprints:Slide-switch-SS-12D11L7 | SW1 |
| 1 | Temp 1 | Chof747 Footprints:MJ2509N | J2 |
| 1 | Temp 2 | Chof747 Footprints:MJ2509N | J3 |
| 1 | USB | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | USB_B_Micro | Chof747 Footprints:Micro USB | J1 |
Questions
How big is the Kitchen clock PCB?
It measures 66.9 × 110 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Kitchen clock use?
74 parts, built around the ESP32-S3-WROOM-1-N8R8, ADS1115IDGS, MT3608 and CN3058E. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Kitchen clock KiCad files?
From the chof747/kitchen-clock repository on GitHub, at the commit this page was made from: the board is electronics/kitchen-clock.kicad_pcb and its schematic electronics/battery_management.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Kitchen clock design in my own project?
Its repository states no licence, so its author keeps all rights: ask chof747 before reusing the design.
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