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5×7cm Double-Sided Prototype PCB Board — ESP-12E/F, ESP32, Arduino Compatible
5×7cm Double-Sided Prototype PCB Board ESP-12E/F, ESP32, Arduino Compatible
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5×7cm Double-Sided Prototype PCB Board — ESP-12E/F, ESP32, Arduino Compatible
This 5×7cm double-sided prototype PCB features copper pads on both top and bottom layers with plated through-holes, enabling more complex circuit routing than single-sided perfboard. With 2.54mm (0.1") hole pitch and 1.6mm FR4 substrate, it is compatible with ESP-12E/F module footprints, ESP32 module breakouts, Arduino Nano/Pro Mini, and standard DIP through-hole components. Ideal for building permanent ESP8266/ESP32 breakout boards and custom IoT sensor nodes.
Key Specifications
| Parameter | Value |
|---|---|
| Board Size | 5 × 7cm (50 × 70mm) |
| Hole Pitch | 2.54mm (0.1") |
| Hole Diameter | 1.0mm (plated through-hole) |
| Copper Layers | Double-sided (top + bottom, plated through-holes) |
| Substrate | FR4 fiberglass, 1.6mm thickness |
| Copper Finish | Tin-plated (HASL) |
| Compatible Modules | ESP-12E, ESP-12F, ESP32-WROOM, Arduino Nano/Pro Mini |
Single-Sided vs Double-Sided — Why Double-Sided?
| Feature | Single-Sided | Double-Sided (this listing) |
|---|---|---|
| Copper layers | 1 (bottom only) | 2 (top + bottom, plated vias) |
| Routing | Jumper wires for crossings | Top/bottom traces, no jumpers needed |
| ESP-12E/ESP32 breakout | Difficult | Ideal — route power and signals on separate layers |
| Best for | Simple circuits | ESP8266/ESP32 breakout, Arduino shields, complex circuits |
Why Choose This Double-Sided PCB?
- Plated through-holes — electrical connection between top and bottom copper layers at every hole
- ESP-12E/F compatible layout — 2mm pitch castellated pads of ESP-12 modules align with 2.54mm grid for breakout routing
- FR4 1.6mm substrate — standard PCB thickness, fits most enclosures and connectors
- Double-sided routing — route power on bottom, signals on top for cleaner layouts
- 2.54mm pitch — compatible with all standard DIP ICs, headers, and connectors
Compatible With / Common Use Cases
- ESP-12E/F breakout board: Solder ESP-12E module and add 3.3V regulator, USB-UART, and GPIO headers for a custom NodeMCU-style board
- ESP32 custom board: ESP32-WROOM-32 module breakout with power supply and sensor connectors
- Arduino Nano shield: Custom sensor and relay shield for Arduino Nano (fits Nano header spacing)
- IoT sensor node: ESP8266 + DHT22 + BME280 permanent sensor board for Home Assistant
- Relay control board: ESP32 + optocoupler + relay circuit for smart home switching
Frequently Asked Questions
Q: Can I solder ESP-12E directly onto this board?
A: ESP-12E has 2mm pitch castellated pads, while this board has 2.54mm pitch holes. You cannot plug ESP-12E directly into the holes, but you can solder it flat onto the board surface using the castellated pads, or use a 2mm-to-2.54mm adapter. Many builders solder ESP-12E onto the board edge and route traces to 2.54mm headers.
Q: Are the through-holes plated (connected top to bottom)?
A: Yes — this is a key advantage over single-sided boards. All holes are plated through, meaning a component lead soldered on the bottom also connects to the top copper pad. This allows top-layer traces to connect to bottom-layer traces through any hole.
Q: What is the maximum trace current for this prototype PCB?
A: The copper thickness is typically 35μm (1oz). A 1mm wide trace can carry approximately 1A continuously. For power traces (5V, 3.3V), use multiple parallel traces or solder additional wire on top of the trace for higher current capacity.
Package Contents
- 1× 5×7cm Double-Sided Prototype PCB Board (FR4, plated through-holes)
