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High Quality Boards, Modules and Components|PTSolns

Our goal is to provide the highest quality products backed by our unparalleled customer support.

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A Sneak Peek Into Some Of Our Collections|PTSolns

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Tinker Thoughts Blog

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  • PCB Trace Width Calculator with Plot

    TTB #13: PCB Trace Width Calculator with Plot

    The PCB Trace Width Calculator uses IPC-2221 to estimate trace width, resistance, voltage drop, and power loss for internal and external PCB layers. It supports unit selection, graphing, and quick approximations—ideal for early-stage design and educational use. 

    TTB #13: PCB Trace Width Calculator with Plot

    The PCB Trace Width Calculator uses IPC-2221 to estimate trace width, resistance, voltage drop, and power loss for internal and external PCB layers. It supports unit selection, graphing, and quick approximations—ideal for early-stage design and educational use. 

  • Non-Compliant Use of CH340 V3 Pin: Deep Dive for Engineers

    TTB #12: Non-Compliant Use of CH340 V3 Pin: Deep Dive for Engineers

    In this technical deep dive, we examine the CH340 USB-to-serial converter and a curious V3 pin configuration used by SparkFun. While the CH340 datasheet specifies tying V3 to VCC in 3.3V mode, SparkFun connects it only to a capacitor—seemingly a violation. Through bench tests, we found the internal LDO enters dropout mode at 3.3V, allowing V3 to stay near VCC as long as no external current is drawn. This explains why SparkFun’s CH340 design remains reliable. We validate their approach and confirm its safe use in our own CH340C-based products, including our upcoming board.

    TTB #12: Non-Compliant Use of CH340 V3 Pin: Deep Dive for Engineers

    In this technical deep dive, we examine the CH340 USB-to-serial converter and a curious V3 pin configuration used by SparkFun. While the CH340 datasheet specifies tying V3 to VCC in 3.3V mode, SparkFun connects it only to a capacitor—seemingly a violation. Through bench tests, we found the internal LDO enters dropout mode at 3.3V, allowing V3 to stay near VCC as long as no external current is drawn. This explains why SparkFun’s CH340 design remains reliable. We validate their approach and confirm its safe use in our own CH340C-based products, including our upcoming board.

  • Introducing PTSolns-GPT

    TTB #11: Introducing PTSolns‑GPT

    Today we’re excited to announce PTSolns‑GPT, a powerful new addition to the PTSolns ecosystem. Trained specifically for PTSolns products and related projects. We threw everything at it but the kitchen sink to make it as knowledgeable as possible. Datasheets, custom libraries, tutorials, and everything else!

    TTB #11: Introducing PTSolns‑GPT

    Today we’re excited to announce PTSolns‑GPT, a powerful new addition to the PTSolns ecosystem. Trained specifically for PTSolns products and related projects. We threw everything at it but the kitchen sink to make it as knowledgeable as possible. Datasheets, custom libraries, tutorials, and everything else!

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View all in Tinker Thoughts Blog