In the past few months I had designed my own development boards in order to get max out of them, nowadays I am working on CH32V003F4P6 by WCH, and I was very amazed by the features and performance this microcontroller gives. Why I switched to this one from arduino is because this is a 32-bit RISC-V microcontroller that costs around $0.10 yes, ten cents that makes it one of the cheapest 32-bit MCUs you can get. But you know Arduino is love and that's why I designed a complete custom dev board around this chip in the Arduino Nano form factor style.

Complex boards don't scare us.

They just take the right tools — and the right team.

JLCPCB Layout was built for exactly this.

Many people think PCB Layout simply involves connecting components using traces. But a truly reliable circuit design goes far beyond that. Take high-speed circuits, for example. During the layout phase, we need to consider the following:

⚡ Signal integrity: Ensure differential pairs have equal lengths and that traces have controlled impedance to prevent signal distortion.

🔁 Power integrity: Place decoupling capacitors close to the circuits they serve to reduce power noise.

📡 EMC considerations: Keep sensitive signals away from sources of interference, and ensure the ground plane remains intact without divisions.

🏗️ DFM compliance: Consider all aspects related to manufacturing and soldering at every step.

JLCPCB’s layout team specializes in this area, handling projects ranging from simple single-layer circuits to complex multi-layer high-speed circuits.

Most projects stall at PCB layout. Cluttered wiring, poor impedance control, EMC issues…

JLCPCB's engineers route your board, clean.

Register now for a discount coupon!

Dyeing: A 3D Printing Surface Finishing Method

Want to add color to your nylon parts without painting?

With JLC3DP dyeing service, your nylon prints get a clean, uniform black finish — no peeling or uneven coating.

Deep, even color penetration

Improved surface look & texture

No paint chipping or flaking

Commonly used for these materials:

PA11-HP

PA12-HP

PA12S-HP

💡 Best for nylon parts that need a clean, durable black finish

(Avoid long UV exposure or harsh chemicals)

Upgrade your prints with the right finish.

Circuit Protection Matters

A successful protection system usually goes unnoticed until something goes wrong.

Fuses are designed to sacrifice themselves to prevent greater damage elsewhere in a circuit. Despite their simplicity, proper fuse selection and understanding schematic symbols are essential for reliable designs.

Protection is often the difference between a recoverable fault and a catastrophic failure.

Choosing the Right Tool for the Job

Not every project needs Wi-Fi, Bluetooth, Linux, or multicore processing.

Many successful embedded products rely on straightforward microcontrollers performing a limited set of tasks reliably for years.

Selecting hardware based on actual requirements rather than maximum specifications often results in better products.

Hardware Selection Shapes Everything

Two engineers can build the same product using completely different platforms.

An ESP32 may provide excellent low-power wireless control, while a Raspberry Pi may enable advanced processing and software capabilities.

Understanding where each platform excels helps ensure the right balance between performance, power consumption, and cost.

The IC Is Only Half the Story

When selecting a component, engineers often focus on specifications such as processing power, memory, or current rating. However, the package itself can significantly impact thermal performance, manufacturability, PCB size, and production cost.

A Chip Scale Package (CSP) can dramatically reduce board space, while larger packages may provide better heat dissipation and easier assembly.

Understanding package technologies is becoming increasingly important as electronic products continue to shrink.