element14 on Bald Engineer

nRF7002 DK vs EK vs EB Hands-On

Thu, 01 Feb 2024 13:53:00 +0000

In August 2022, Nordic Semiconductor announced its first Wi-Fi product. The nRF7002 is a dual-band (2.4 and 5 GHz) Wi-Fi 6 compatible companion IC. It does not have a general-purpose microcontroller built-in. Instead, Nordic intends for you to combine it with another microcontroller, like one of their nRF52 or nRF53-series system on chip (SoC). Nordic and the element14 Community sent me an nRF7002 Development Kit (DK), Evaluation Kit (EK), and some nRF7002 QFNs. I reviewed the nRF70 variants in this video and looked at the various boards. As the thumbnail suggests, I connected the Wi-FI transceiver to a FPC1500 spectrum analyzer.

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RP2040 Debug and Turn-On Tips

Wed, 31 Jan 2024 17:35:18 +0000

During the component shortage, I got to know Raspberry Pi’s RP2040 microcontroller. It is a dual-core Arm Cortex-M0+ with about 262 kilobytes of RAM. The feature I like most is the programmable IO pins. These are small state machines that run independently of the Arm cores. They allow for some clever tricks. For example, I used them extensively on the Mega IIe project. This video was supposed to be a project I thought of during the Mega IIe. I call it a state-mode logic analyzer. However, it took me several days to turn on and debug four boards. Time ran out, so I focused the video on debugging custom RP2040-based boards. These are all lessons I have learned from this project, plus about another dozen RP2040 boards I have built over the past couple of years.

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Let's connect on element14

Fri, 11 Apr 2014 11:00:36 +0000

What does Silicon have to do with Social Media? Silicon’s Atomic Number is 14. Wait what? Oh… element14 is, basically, a social media site for electrical engineers, embedded designers, makers, and hobbyist. Forums, blogs, videos, and all kinds of resources from “celebrities” around the EE world. It’s one of the most active communities and, in my opinion, one of the cleanest layouts. Over the past few months, I’ve been becoming more active there. If you’re there, check out my activity feed and add me as a contact! It’s a great way to stay in touch.