2 layers
Controller
dario0603/Hotplate
Hotplate is a DIY electronics project focused on the design and development of a hotplate and its associated control electronics.
101 parts
2 layers99.1 × 92.7 mm
Controller
dario0603/HotplateHotplate is a DIY electronics project focused on the design and development of a hotplate and its associated control electronics.
- Size
- 99.1 × 92.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 100
- Nets
- 81
- Pads
- 341
- Tracks, vias
- 901, 127
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Mar 2026
- Updated
- 20 Oct 2026
Overview
Controller is an open-source printed circuit board by dario0603, from the dario0603/Hotplate repository on GitHub. It is a 2-layer board of 99.1 × 92.7 mm with 100 parts on 81 nets, routed with 901 tracks and 127 vias.
It is built around the RP2040, W25Q128JVSIQ and AP2112K-3.3, with the L7805, SFH617A-1 and AO3400A among its other parts. Its parts include 27 resistors, 23 capacitors, 7 connectors, 6 diodes and 5 ICs. It belongs with the RP2040 boards of this library.
Main components
8
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SFH617A-1
DIP-4UncategorisedVishay Intertechnology
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
IRLR2905
TO-252MOSFETsTECH PUBLIC
EC11B15242AE
插件-40℃~+85℃ 10mA 30/15 5V Incremental Right-Angle Two-phase output Plugin Rotary Encoders ROHSALPSALPINERotary Encoders
README
README.mdHotplate
An open-source hotplate project for electronics and PCB work.
Work in Progress — This project is currently under development. Hardware designs, PCB revisions, documentation, and other project files may change.
Overview
Hotplate is a DIY electronics project focused on the design and development of a hotplate and its associated control electronics.
This repository is intended to collect the hardware designs, PCB documentation, and project resources as development progresses.
PCB Designs
Hotplate Resistor
The custom PCB designed for the hotplate heating element.
Hotplate Control Board v1.1
The control electronics PCB, revision v1.1.
Repository Structure
Hotplate/
├── img/
│ ├── hotplate-control-board-v1.1.png
│ └── hotplate-resistor.png
├── Kicad/
│ ├── Control board/
│ │ ├── Control board v1.0/
│ │ ├── Control board v1.1/
│ │ └── Control board v1.2/
│ ├── Resistor 10x10/
│ └── Resistor 15x15/
├── Program/
│ ├── lib/
│ ├── Master/
│ ├── Master_prova/
│ ├── backup1/
│ └── backup 2/
├── Simulation and circuits/
└── README.mdThis tree shows the main project directories. Individual KiCad libraries, 3D models, backup files, and simulation outputs are omitted for readability
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0805_2012Metric | C3, C5, C6, C7, C10, C11, C14, C15, C16, C17, C18, C19, C20 |
| 13 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R6, R8, R9, R16, R20, R21, R22, R23, R24, R25, R27 |
| 12 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP4, TP5, TP6, TP8, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17 |
| 5 | TestPoint | TestPoint:TestPoint_Pad_D2.5mm | TP1, TP2, TP3, TP7, TP9 |
| 4 | 1N5817 | Diode_SMD:D_SMA | D1, D2, D3, D4 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R5, R10, R11 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 10n | Capacitor_SMD:C_0805_2012Metric | C21, C22, C23 |
| 3 | 8.2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18, R19 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C2, C4 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C12, C13 |
| 2 | 27 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R13 |
| 2 | 27p | Capacitor_SMD:C_0805_2012Metric | C8, C9 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R26 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q3, Q4 |
| 2 | I2C_Connector | Connector_JST:JST_XH_S3B-XH-A-1_1x03_P2.50mm_Horizontal | J6, J7 |
| 2 | IRLR2905 | Package_TO_SOT_SMD:TO-252-2 | Q1, Q2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5, D6 |
| 1 | 10A | Fuse:Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open | F2 |
| 1 | 12 MHz | Crystal:Crystal_SMD_7050-4Pin_7.0x5.0mm | Y1 |
| 1 | 1A | Fuse_holder:0154.250DR | F1 |
| 1 | 20k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 300 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 330n | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 5k6 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | Connector_Conn_01x40_Female | Connector_FFC-FPC:Hirose_FH12-40S-0.5SH_1x40-1MP_P0.50mm_Horizontal | FPC1 |
| 1 | Debug | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | EC11B15242AE | Trimmer_resistor:EC11B15242AE | S1 |
| 1 | FPC connector, 6 pins, 0.5mm, BOTTOM contacts | Connector_FFC-FPC:Hirose_FH12-6S-0.5SH_1x06-1MP_P0.50mm_Horizontal | FPC2 |
| 1 | L7805 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U1 |
| 1 | RP2040 | RP2040:RP2040-QFN-56 | U5 |
| 1 | Resistor_Hotplate | MK1000:MK1000_P10mm_1x02 | J4 |
| 1 | SFH617A-1 | Package_DIP:DIP-4_W7.62mm | U2 |
| 1 | Therm | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J2 |
| 1 | USB_C | USB_C_4_pin:USB_C_4_pin | J3 |
| 1 | Usb_boot | Button_Switch_SMD:SW_SPST_B3S-1000 | SW1 |
| 1 | V_IN | MK1000:MK1000_P10mm_1x02 | J1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U4 |
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Questions
How big is the Controller PCB?
It measures 99.1 × 92.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Controller use?
100 parts, built around the RP2040, W25Q128JVSIQ, AP2112K-3.3 and L7805. 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 Controller KiCad files?
From the dario0603/Hotplate repository on GitHub, at the commit this page was made from: the board is Kicad/Control board/Control board v1.0/Controller.kicad_pcb and its schematic Kicad/Control board/Control board v1.0/Controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Controller design in my own project?
Its repository states no licence, so its author keeps all rights: ask dario0603 before reusing the design.