Joined April 2007
4,975 Photos and videos
Pinned Tweet
29 Aug 2020
Laying out any project featuring a USART serial port.
30
254
1,159
So, if you dig deep enough into the STM32WL Cube / HAL, you find an amusing tag, that the CubeMX regeneration will apparently respect: ST_WORKAROUND_BEGIN/END. I googled it. There are like 12 results. They all seem to be related to this STM32WL series that I'm using. Great.
Figured out a nice approach to power saving with the PMIC on my LoRA node... Down to a sleep current of 0.46µA! The STM32WL projects seem to suck at low power mode w/o context management, and that seemed broken also... So - just using the PMIC's timer to switch VCC to the STM.
1
9
1,241
Engineering is about balancing things, in a lot of ways. RF, even more so. Use the Joymax antenna to balance out the LORA module that makes you cry.
1
1
9
1,695
I'll be honest, I just let out a little happy noise when I noticed this in @kicad_pcb v10.0!
1
4
44
2,513
Guess the part. Interesting part numbering. Didn't notice it until going to place it and looking for pin 1.
1
5
339
Figured out a nice approach to power saving with the PMIC on my LoRA node... Down to a sleep current of 0.46µA! The STM32WL projects seem to suck at low power mode w/o context management, and that seemed broken also... So - just using the PMIC's timer to switch VCC to the STM.
2
1
16
2,272
What is the actual point in any of this rubbish. Actively detrimental compared to google search and y et it's forced into each use the tool that once, allowed us to do things like "search for actual information that exists." @google you should be ashamed to call this a product.
1
2
471
Do they really.
318
Ah got there in the end. A working I2C scanner on the STM32WL, showing all my lovely chips reporting back, and then pulling the data off a pair of Adafruit Soil moisture probes, before pinging the readings up through my LoRa gateway, and through to my local Chipstack Server.
"Nice. Working, compiling project. Hm, i'll just add in I2C via CubeMX..." >> make: *** No rule to make target '/Core/Src/dma.c', needed by 'Application/User/Core/dma.o'. Stop.
1
10
1,256
It figures that most of this has been trying to sort out the 10 layers of all the different MX drivers all, seeminly written with no co-existence with each other in mind. MX_I2C_Init broke the LoRa App, fixing that somehow breaks the logging... Anyway. nPM2100 PMIC: Working✅
1
389
"Nice. Working, compiling project. Hm, i'll just add in I2C via CubeMX..." >> make: *** No rule to make target '/Core/Src/dma.c', needed by 'Application/User/Core/dma.o'. Stop.
16
4
101
5,408
Aw man come on.
2
1
267
Even the damn STM32CubeProgrammer seems broken on a fresh install? This file isn't present, but I also don't think that's a legit value (0xFFF) - it's not present on an older system that *does* work.
1
196
Bringing up a Nordic Semi nPM2100 based PMIC on a LoRa radio node - lovely to see the shipping mode functioning nicely. Not even sipping 1mA in ship mode - and I can probably tweak a pullup/down or two to shave a few uA off that still!
1
3
286
eyy, and we have a target. fantastic!
2
137
Tom Fleet retweeted
Breaking News: Steven Rosenbaum, the author of “The Future of Truth,” acknowledged that the nonfiction book about the effects of A.I. on truth included misattributed or fake quotes concocted by A.I. nyti.ms/4wE8ssc
69
300
914
435,459
Still looking for the Onion logo somewhere...
We raised $1M dollars to reinvent how people read. Introducing Mark II - a $159 AI bookmark. Thread below
13
898
Tom Fleet retweeted
Yeah or you could just read the the back of the board. I'm so tired of AI bros. So very tired.
13
72
2,541
96,048
Tom Fleet retweeted
is it me, or do things just generally... not really work anymore? it would be amusing if not for the fact that QOS once seemed to be a valued metric.
7
5
108
4,743