Why is it called JLCONE?

It stands for JLC + One.

We combined all four independent JLC platforms — JLCPCB, JLC3DP, JLCCNC and JLCMC — into one single all-in-one platform, covering PCB manufacturing, PCBA, 3D printing and CNC machining. Everything you need is gathered in one place, and that’s why we name it JLCONE.

When PI heaters are too thin or delicate for your project, Silicone Rubber Heaters step in. They are the "tough guys" of flexible heating.

Why choose Silicone?

• Rugged & Durable: Reinforced with fiberglass, these are moisture and chemical resistant.
• Higher Power: Can handle much higher watt densities than PI films.
• Temp Range: Stable performance from -60°C to +230°C.
• Excellent Conformance: Flexible enough to wrap around pipes or curved surfaces.

Best For:

• 3D Printing: The standard for high-temp heated beds.
• Industrial: Drum heating and freeze protection for outdoor enclosures.
• Automotive: Battery warming and oil pan heating.

💡 JLCPCB Advantage: We offer custom shapes and integrated sensors (like Thermistors) directly in the silicone mat for precise thermal control.

Next: PET (Polyester) – The Budget-Friendly Choice.

Need a heater as thin as a business card? Polyimide (PI) Heaters are the high-performance choice for precision engineering.

Why choose PI?

• Ultra-Thin: Only 0.1mm – 0.2mm thick.
• Extreme Temp: Operates from -200°C to +200°C.
• Vacuum-Ready: Low outgassing, ideal for aerospace and lab equipment.
• Fast Response: Low thermal mass means near-instant heat transfer.

Best For:

• Medical: Blood analyzers and DNA sequencing.
• Aerospace: Satellite thermal control.
• Electronics: De-icing lenses and warming batteries in tight spaces.

💡 JLCPCB Advantage: We use Etched Foil technology for precise heat distribution and complex shapes. Add 3M PSA (Adhesive) for easy peel-and-stick installation.

Next: Silicone Rubber Heaters – The Industrial Powerhouse.

1. Go JLCPCB's homepage,Click the APP download in the top right-hand corner, then enter it, as shown below

1. Download JLCONE for Mobile

1. Go JLCPCB's homepage,Click the APP download in the top right-hand corner, then enter it, as shown below

2.Download JLCONE APP

Hi, I'm Adib Fridiansya. My world revolves around the intersection of RF and Embedded Systems, and today, I'm pulling back the curtain on the most critical component of any UAV: the Flight Controller (FC).

While the maker community often experiments with Atmega (the 8-bit veteran) or the ESP32 for its built-in connectivity, the industrial drone world has a clear, undisputed gold standard: the STM32 Ecosystem.

If you want to design a professional-grade FC, you need to understand the hierarchy of these silicon brains. I've categorized them into three tiers that define the modern drone landscape:

• STM32F4 (The Reliable Foundation): This is the 'OG' of 32-bit flight. It's the core of the legendary Pixhawk 2.4.8. While it's an older generation, its stability and wide support make it the perfect entry point for embedded flight logic.
• STM32F7 (The Efficiency Specialist): The F7 series is the 'sweet spot.' It offers a massive jump in processing power with surprisingly low power consumption. This is why you'll find the F7 as the heart of high-end Monitoring and Inspection Drones that require long flight times without sacrificing performance.
• STM32H7 (The Absolute Beast): This is where things get serious. The H7 is pure, raw power. Its clock speed is so high it can effortlessly manage Dual or even Triple IMU sensors (Gyro/Accel) simultaneously to filter out vibration and ensure rock-solid stability. This is the top-tier choice for heavy-lifters and elite Racing Drones from industry leaders like Matek and The Cube (Orange/Blue).

Are you ready to stop buying off-the-shelf boards and start engineering your own? Over the next 30 days, I’m hosting a Deep Dive Series on Flight Controller design from schematic logic to sensor integration.

At Projectpajri, we want to share how to build a camera from scratch using only an ESP32-S3 Cam from Seeed Studio!

By leveraging examples on the web, we can develop our own version. It turns out we can use the st7789 screen as the interface for this ESP32 camera. It might seem daunting at first, but the key is to try. Don't worry, all Projectpajri tutorials are FREE for you to learn.

#esp32#

From structure to motion, explore how JLCMC supports modern industrial systems with a wide range of mechanical components.

📍 Hall 17, Stand F47

📅 April 20–24, 2026

👉 Let’s meet and discover practical solutions in Hannover.

Casters are durable components that combine load-bearing capacity with smooth mobility, delivering convenience and efficiency to your work.

Whether for use in factory warehousing, laboratories, or AGV (Automated Guided Vehicle) applications, these casters perform reliably across a wide range of demanding scenarios.

🏠 15,000+㎡ warehouse managing 2M+ SKUs

📦 130+ categories – from linear motion, power transmission to hardware and pneumatic components

🤝 Reliable supply solutions for industrial automation, manufacturing systems, and engineering applications

With standardized and intelligent warehouse management, we are committed to being a reliable partner in your workflow, minimizing your downtime and keeping your operations moving.

Traces created using microstrip will be routed on the outer layers of a PCB with only one reference plane and will be run within two reference planes when using stripline. Microstrip traces are easier to access and check than stripline traces, but they are also at greater risk of electromagnetic interference (EMI) and size variations than stripline traces. Stripline provides better shielding from EMI than microstrip does, has more consistent impedance than microstrip does, and usually emits less radiation than microstrip does. For these reasons, the use of stripline tracers is recommended for any high-speed applications where a weak indication of noise will interfere with your work. On the other hand; if you are designing a PCB with a lower degree of complexity and will be using it for an economy-based project, then microstrip is your best choice. Your decision as to the type of geometry you ultimately choose (microstrip vs stripline) will be determined by the total number of layers in your stackup, the speed of your signals and; most importantly, the amount of EMI generated by your PCB design efforts.

Crosstalk is degradation of signal quality that occurs between traces which are close to one another. The 3W Rule is simply to keep at least three times the width (W) of the trace separation between parallel traces will eliminate, or greatly reduce, the effect of electromagnetic coupling, thereby reducing the interference which can be experienced in most digital designs. For high-speed and highly sensitive analog signals, even larger distances or use of shielding techniques (i.e., ground traces or ground planes) may be necessary. It is very important to route all critical signal lines over continuous reference planes and try to avoid long parallel runs. Following the 3W Rule early in the design will help to ensure that the signal integrity will be retained without requiring complex redesigns later.

PCB with crosstalk prevention

When there is a disparity between the lengths of two traces in a differential pair, there can be an unequal electrical environment which leads to the traces being mis-timed. Therefore, it is necessary to keep the traces as closely matched in length as possible (typically a few mils in length) for high-speed signals. When routing differential pairs, they need to remain paired when routed; never separate them. Use serpentine tuning only if absolutely necessary and use it in a symmetrical manner to eliminate any disruption to the impedance of the signal. Spacing between the two traces and having a continuous reference plane between them will create equal propagation delay to both traces. Minimize the use of vias and if you must use vias, use the same number of vias on both traces. Maintaining control over the skew will maintain the integrity of the signal at high speeds thus creating a reliable means of communication at high-speed.

Heat has the potential to destroy PCBs without producing any noise. If you ignore it, your circuit board will become unreliable and ruin your design. The big question really is how to deal with heat.

Thermal vias are your first line of defense. A thermal via is a small hole plated through to another layer of copper, typically used under or near heat-generating devices such as: regulators, power ICs, etc. Thermal vias transfer heat from the top layer of the PCB to the inner or bottom copper planes. They are small, inexpensive, and effective for transferring and dissipating moderate amounts of heat. A well-designed array of thermal vias—which have proper diameter, spacing and are connected to a large copper pour—will greatly enhance the capability of the PCB to dissipate heat without adding any additional board space.

PCB with thermal vias

However, thermal vias do have limitations. They are designed to transfer the heat to the PCB copper for distribution. If the PCB does not have adequate copper at the copper plane level(s) to dissipate the thermal energy in a time frame, the thermal energy will continue to place excessive heat on the thermal vias and eventually overheat the device.

This is where heat sinks come into play. A heat sink is a device that is designed to attach physically to the device being cooled and to increase the amount of surface area that will be able to dissipate thermal energy to the surrounding air. Heat sinks are extremely important for devices that generate a lot of thermal energy compared to the capacity of the PCB to dissipate the thermal energy. An example of this would be voltage regulators, power transistors, or LED devices.

PCB with thermal vias

The decision of whether to use thermal vias or a heat sink depends on the application requirements and the available space. In general, thermal vias and solid ground planes are adequate for compact designs such as wearables and IoT nodes. In high power applications, you can use both thermal vias to transfer heat away from the component and a heat sink to transfer heat to the air.

Airflow should also be taken into consideration when selecting a heat sink; heat sinks in an enclosed space without any form of airflow will not work well.

In conclusion: Thermal vias provide good heatsinking but are not as effective as using a full sized heat sink in a normal way. When used together, they ensure that you don't overheat your printed circuit boards.

PCB integrating heat sinks and thermal vias

Why Are PCBs so boring with their whole size being a simple rectangle that is usually a dull color? That is changing quickly! With the right imagination, your board can function as both a functional art piece and an incredibly well designed product. Nothing says, “engineer with style,” more than having a well routed ground plane on your board.

The first thing you need to think about is your silkscreen layer, which will be your canvas for logos, labels and subtle design elements. Keep your designs to a minimum (not too high a density) because a high density design will probably get clipped when it goes to manufacturing. When you do design in your silkscreen, make sure you use the right line width, which is usually greater than or equal to 0.15 mm, and don’t put a silkscreen over the pads unless you enjoy having mysterious problems when you go to solder parts onto them.

PCB silkscreen layer, Logo printing

Next, begin the process of creating your copper artwork. By designing your copper pours or traces, you can design patterns, logos, and elaborate designs directly into the board. Exposed copper (using ENIG or HASL) can look great when combined with different colors of solder mask. However, don’t forget that copper will conduct electricity, and you will not like it if you create an antenna or short to ground with your logo.

Copper pour designs on PCB

To add some additional pizzazz, try using solder mask openings to expose areas of copper that are under the solder mask. Many companies will now also have various colors of solder masks to choose from such as black, red, or blue as well as some that have a matte finish. This can give you a lot more flexibility for the aesthetics of the board.

Layer alignment is important. If the layer artwork is not aligned properly, it may appear messy. Therefore, it is critical to preview your Gerber files thoroughly. Follow the manufacturer's minimum requirements of spacing and clearance between design components, because the graphics should not negatively impact how the piece functions.

Ensure that the graphic components serve a valid purpose. The artistic portion of the layout helps improve the useability of the overall layout (via clear labels, orientation indicators, and branding), whereas the graphic components merely serve as decoratively increasing the aesthetics of the layout. By designing your PCBs properly, you can have both an attractive and functional product.

well designed PCB with proper layer alignment.

After you have completed the design process correctly (note there is a long timeline for debugging we will be doing), you will now possess a printed circuit board that functions and appears suitable for display!

When choosing LEDs for an electronics project, the decision between Analog and Digital (Addressable) is a crucial architectural choice that will influence your MCU’s workload and your power delivery strategy.

Analog LED

Analog strips are simple components. Every LED on the strip is connected to the same power lines, meaning they all change color and brightness simultaneously. To control these, your MCU uses Pulse Width Modulation (PWM). Since an MCU pin cannot handle the high current required by a strip, you must use external N-Channel MOSFETs as switches. The MCU toggles the MOSFET gates at high frequencies to dim or blend colors. On the bright side, they are inexpensive, extremely bright, and offer high color resolution limited only by your MCU's PWM timers. However, you lack individual pixel control, it's all or nothing. Wiring is also more complex for RGB because you need thick, dedicated wires for each color channel to handle the Amps.

Digital LED

On the other hand, digital LEDs, contain a tiny driver IC inside the LED package itself. These use a high-speed NRZ (Non-Return-to-Zero) serial protocol. The MCU sends a single data stream where each LED "consumes" its 24-bit color data and passes the rest to the next pixel. You can control every single pixel independently using just one MCU pin. This allows for complex animations and "chasing" effects which could be very impressive and fun for your projects. However, they are timing-critical. If your MCU's code is interrupted by a background task, the data signal can glitch. They also have a "quiescent current," meaning they consume power even when they are "off."

What should you choose?

Choose Analog for architectural lighting where uniformity is key and budget is tight. Choose digital for dynamic displays, but ensure you include a large filter capacitor (1000µF) across the power rails to prevent voltage spikes from damaging the sensitive internal ICs.