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Newsletter

Signal & Solder

Tools, deals, and builds worth your time.

Signal & Solder is a weekly newsletter for engineers, makers, and hardware hobbyists. We share the best tools, deals, builds, and resources, without the fluff. Just useful stuff you can actually use.

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Past issues

5 May 2026

Power profiling, $20 e-paper, and the current shunt ritual

πŸ”§ Tool of the Week

Joulescope JS110 / JS220

The gold standard for low-power profiling. It allows you to see the tiny current spikes of an MCU waking up from sleep in real-time with incredible dynamic range. If you are optimizing battery life for IoT, this is the tool. πŸ”— [https://www.joulescope.com/](https://ww

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1 May 2026

Logic analyzer clones, $5 Linux modules, and trace analysis

πŸ”§ Tool of the Week

Sipeed Logic Analyzer (USB 3.0)

A massive step up from the dirt-cheap clones. This $70 unit handles higher sample rates and deep buffers, making it the perfect middle ground for engineers who need more bandwidth than a $10 Saleae clone but don't want to drop $1k on professional hardware. πŸ”—

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