Combining serial stream bytes/nibbles to make a number.

I thought I’d drop this here for someone who needed a copy-paste solution. I am parsing a serial string output from a YDLIDAR X4 rotating lidar. I have to do this because the library sucks. a lot. I mean I’m not over my heels with the unit anyhow, first off who the hell outputs at…

iButtonLink / DS18B20 Arduino Datalogger

What a groaner.. who needs another datalogger? Well I do, so stuff it. I was inspired to check out these iButtonLink devices that allow you to daisy-chain connect a number of devices in a single circuit of sorts with RJ45 patch cables. I had seen these a couple years ago in some top-notch datacenters that…

Re-Post: iButtonLink T-Sense 1-wire sensor (Maxim DS18B20) + PIC 18F14K22

Using a PIC Microcontroller to pull temperature of iButtonLink T-sense sensor. I pulled this off the wayback machine because I lost this post in the great database loss of how ever many years ago. I’m re-posting because I’m working on an expanded version of this with an Arduino dev board and wanted a reminder of…

eBay Mini-vacuum Pump

Quick version: Hey this little thing works and seems practical for robotics, specifically the Pop Can Challenge. I had to add “mini” to the title of this post, calling this a vacuum pump seems odd when you’ve played around with big pumps. Which leads me to make a mental note to share some information my…

ESP32 Boot Camp

… for me. I got a rando e-mail offering me “free parts” and I usually don’t even bother opening the e-mail. It’s ALWAYS garbage right? Well, maybe I hadn’t slept well the night before but I opened it. (psss. You can scroll down about a page before I actually get anywhere in this post…) What…

WWVB signal generated from GPS

I sat at the bench this morning waiting for the inspiration to continue on with a project I’m working on with Francesco; I gave in to procrastination. I wrote some¬†assembler code to generate WWVB signal from a PIC a few months ago, remember? That stirred some interest from overseas folks looking for a way for…

GPS on the PIC 18F26K22

I was asked to create a box that notified by LED if you were too far off a N/S or E/W course. I failed, I doubted the specified GPS accuracy/drift as my Garmin seems to stay pretty steady.. perhaps that’s some integration in the processing? I started with one of the 18F26K22 TAUTIC development boards…

Project: GPS2 Click with the PIC Clicker

I’m working on a GPS-based WWVB simulator and I’m pretty close to finished. I wanted to share up to the point where I add on the WWVB circuits and have it stripped down to just the PIC development board and GPS module. This is on a Mikrelektronika PIC Clicker 18F47J53 development board and a QUECTEL…

Analog Stepper Gauge Friday night fun

Took a while to clear off the bench tonight. I got a little happy with the ORDER button last week through weekend. I’ve filled two more parts storage containers and luckily one of my new packages with another parts storage container from Amazon; I couldn’t find any locally, I hope they’re still making them. The…

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