That’s $20 well spent. Nice selection from Nintendo right out of the gate. https://www.instagram.com/p/Bn7zkIkAA_X/?utm_source=ig_tumblr_share&igshid=acinq69zxlk
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2025 on Tumblr: Trends That Defined the Year

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@baldengineer
That’s $20 well spent. Nice selection from Nintendo right out of the gate. https://www.instagram.com/p/Bn7zkIkAA_X/?utm_source=ig_tumblr_share&igshid=acinq69zxlk
Measurements in progress. Propagation delay on a R&S RTM3004 with an Arduino. (at Baldengineer - Electronics Stuff for Enginerds)
I don't recommend crowdfunded projects often, but I fully support the FleaFPGA Ohm. It's a Pi Zero shaped board that packs a ton of programmable hardware awesomeness. I asked Valentin some questions I had, and I thought you might have before placing your order. http://bit.ly/2xUGMlY
FleaFPGA Ohm is a crowdsource project worth considering
Previously, I wrote a FleaFPGA Introduction. This board was about the size of an Arduino Uno with some GPIO pins, a VGA, USB, SD Card, PS2 Style Port, and a USB Host connector. At the time, …
It's been since college I tried to do this: power a microcontroller with a Zener Diode Regulator. It's something that I get asked every once in a while, so decided to write it up. Here's what happened. http://bit.ly/2xmLDh5
Zener diode makes for a lousy regulator
The Zener diode is often used to create a reference voltage. In tutorials and even college texts, there are mentions of creating a Zener diode based regulator. The idea is that the Zener maintains a …
As part of an Element14 Road Test, Pico Technologies sent me a PicoScope 2204. Later I'll post a full review on E14. For now, here are my first impressions of this 10 MHz USB scope. (Spoiler, I like it.) http://bit.ly/2h3eUEh
PicoScope 2204 Review and Hands-On
If you need a reason to be an Element 14 member, let me suggest their Road Test program. Companies partner with Element14 to get people to try out their gear. A couple of years ago I …
Enterprise SSD Capacitor Chalk Talk http://bit.ly/2gyVMxv
Enterprise SSD Capacitor Chalk Talk
https://www.youtube.com/watch?v=iyuWAa4yAuM&t=69s In this video, I discuss considerations for SSD Capacitors, with a focus on enterprise applications. (No, not the ship kind, the business kind.) As more consumer devices use solid state technology, it gets easier for …
This is the start of a script for a future AddOhms video. 5 ways to use a voltage divider, with "regulator" not being one of them. http://bit.ly/2wEC79j
5 Voltage divider circuits that go beyond dividing
Here are some ideas of what you can do with the humble voltage divider. This elementary circuit has a few inventive uses. To be upfront, one of these uses is NOT as a voltage regulator. …
Pi Cap Hands On Review http://bit.ly/2uQl5kE
Video of my oscilloscope talk: "Top of the P(acq)." Given at Supplyframe's office for HDDG 22 http://bit.ly/2uq9085
Top of the P(acq) - Oscilloscope Talk
Supplyframe Hardware has published a video of a talk I gave in July 2017. This talk was at HDDG 22. The focus of my discussion was how an oscilloscope's trigger circuit works. I built on …
All your project needs in one warehouse. HSC in Santa Clara. halted.com #wow (at HSC Electronic Supply)
A while ago I backed a crowd-sourced project: Aeroscope. It's a single channel oscilloscope that fits into a package about the size of a logic probe. Here's my review of it. http://bit.ly/2u9UIIB
Aeroscope Review
Previously, I reviewed the smartphone DMM, Mooshimeter. It is a great meter. One feature I didn’t spend much time on in my review was the ability to graph. Some see it as an “oscilloscope alternative.” …
Here's how I worked through a question about measuring RPM on an Arduino with a 3-pin PC fan. When the fan was controlled with PWM, it created an EMI problem. http://bit.ly/2tpmEGm
PWM a 3-pin PC fan with an Arduino
A question came up on IRC regarding how to PWM a 3-pin PC fan with an Arduino using analogWrite(). Controlling the fan was seemingly straightforward. The problem was that the hall effect sensor, or TACH …
Part 3 of my Raspberry Pi soft power controller series. This post looks at how to run scripts (or programs) at startup and shutdown. Turns out, most tutorials on the web are wrong. (A big change was made in Jessie.) http://bit.ly/2tlqkLk
Raspberry Pi Startup Script Tutorial
The last couple of weeks I have been making progress and posts on my RetroPie build. I'm putting a Raspberry Pi inside of an actual SNES (well Super Famicom). Part 1 covered the schematic for …
Thursday, I'm presenting at HDDG "Signals Abound" (in SF) http://bit.ly/2sWHf4F
Part 2 of my Raspberry Pi Soft Power Controller (RPSPC) build. This post looks at the state machine on the power controller circuit. http://bit.ly/2rUMzDu
Software Power Controller State Machine
Previously I looked at the hardware needed to build a Raspberry Pi soft power supply. This week I'm looking the state machine for the microcontroller. Why is such a complicated circuit necessary? I am replacing a …
Here's a clever way to build a (nearly) zero current soft power supply for a Raspberry Pi. It is controlled by an Arduino (based circuit) and only needs a LDO and Switching supply. http://bit.ly/2pGG2wz
Raspberry Pi Soft Power Controller - The Circuit
The RetroPie project enables retro-gaming with a Raspberry Pi. All of the Pi models have enough computing power to emulate the major 8-bit and 16-bit computers of the 80s and 90s. With the Pi 3 I …
Projects can be as simple as a weekend tinkering around or a long term plan to create a new product. If you want to share or collaborate your work, there are a number of project hosting sites to check out. Here's 4 and the best way to use them. http://bit.ly/2q7iALK
Share projects on one of these 4 platforms
Sharing is the maker community's foundation. When you share projects with others, you contribute to the community. In the past, you might just post your project on a personal website. Today there are many options to …