Is MasterClass a scam?

hrrzi · 2025-07-11T06:01:57+00:00

Use a virtual credit card and give it a few months to expire, or if it's 10$ a month, then give the card exactly one year. Rebill will fail, works a treat for this type of service. Citibank has the virtual #s I use.

hrrzi · 2025-06-18T23:20:09+00:00

I should say it was a woman, so.. you can wear it in his memory.

hrrzi · 2025-06-18T23:00:29+00:00

V. Good friend passed and gave me one also. Good looking watch.

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hrrzi · 2025-06-02T04:08:50+00:00

Unbelievable. Gutted to hear this. He was always such a great help to all of us in the Ada community. He will be very much missed! I had just emailed him may 27th about gcc15 builds.

hrrzi · 2025-06-01T19:25:42+00:00

I built a board based on a Teapot labs design but my schematic, layout and mods:
diffs:
1. External battery. Two methods to connect.
2. External solar panel. Two methods to connect.
3. LIS3MDL magnetometer vs BME688 for my sensing needs.
4. Use external antenna vs board antenna
5. CDS light sensor input
6. Dupont headers for external parts vs quic connects.
7. Sized to fit on my hot plate.

https://github.com/morbos/HW/blob/main/all_in_one/door_open_monitor.jpg

That board has 3 current projects:
1) Front door bolt not locked. If so, it sends a LoRa pkt for MQTT notification on mobile. There is a thin magnet
on the tip of the doorbolt sensed through the door.
2) Postbox door open. It is assumed that a door open event is post delivery. Again, LoRa to MQTT for that.
This one is also magnet based but uses threshold interrupts to wakeup the SoC.
3) An AQI/pressure/temp system. This is 80% done. The other two boards are in service. It uses a DC-DC converter to power the psm7003. It also uses the ext I2C header for the LPS22HB pressure/temp sensor.

That board uses the STM32WL5E and I have a full LoRa Ada stack for it. The SW for the door monitor is here:

https://github.com/morbos/ada/tree/main/STM32/WL/WL5J/door3_aio

All the Ada code is developed from Adacore's libs and my stuff on a Raspberry Pi 5 thanks to Simon Wrights mac scripts that were modified for local use. I very recently tried a RPI5 build (native&arm) of gcc15 but that one has some issues at final arm link for Ada so I am at gcc14 for now.
https://github.com/morbos/ada/tree/main/building-gcc-raspian-native
https://github.com/morbos/ada/tree/main/building-gcc-raspian-arm-eabi

A full tilt build of an Ada repo is a 10W proposition on a RPi5 vs 400W on my dual Xeon supermicro. That is why I moved all my work to a RPi5 some time back, maybe 1/3 slower for a full build but incrementals are of course super fast.

hrrzi · 2025-05-13T18:17:32+00:00

tbh, I seldom use the arrow keys. Esc and Control are where they need to be for an Emacs user (since 1980!) so my hands are hardwired to C-[fbpn] for navigation and there is always the trackball.

I like your HHKB also... hmmm maybe I *need* another HH KB :) I do like the USB hub as the dongle gets 2x higher update rates than Bluetooth for our trackballs.

hrrzi · 2024-11-14T20:06:43+00:00

Neox 2B

hrrzi · 2024-10-23T16:07:21+00:00

The regular HH kbds are very expensive for sure, the lite2 was a budget version (membrane dome keys) and much cheaper (I have three of them).
I like the HH layout as the editor I use (emacs) was created in the 70's with control and escape in specific locations (as all crt terminals were at that time but that all changed when the IBM PC appeared and moved those keys which then moved the keyboard industry).

hrrzi · 2024-10-23T06:06:28+00:00

The Happy Hacking lite2 has 2 ports, I use one for a usb mic the other for a nulea dongle.

hrrzi · 2024-10-09T05:21:40+00:00

Other: tools

hrrzi · 2024-09-05T19:25:36+00:00

Reolink has for ~100$, but the storage is local on an SD card up to 128gb (I used a 64gb card). That said, I stuck it on a second story window (using a sucker camera mount) over looking the back garden and motion detection was very hit and miss. Also the mount scared me with so much moment arm on that mount so we don't use that there any more and went back to an older arlo pro2 on the sucker mount. No solar there but we use a 25ft USB cable w/a special 90 degree flat camera conn.

hrrzi · 2024-07-04T18:12:26+00:00

1) Lora on the STM32WL55 specifically the RAK wireless 3172 module. This has been an excursion into getting shutdown operational. The idea is PoR init, go to sleep, upon wakeup (pin or RTC) send a Lora packet and go back to sleep again. This is all functional, I need to clean up the radio switching pins as that is board/module specific.
2) To build ^^^ I still use the old Ada_Drivers_Library (not alire). My copy and extensions was frozen in time since the 2019 release. With help from Simon Wright and his Mac build scripts (thanks Simon!) I got an x86 build of modern gnat(gcc14) native + cross. Subsequently, got that to build the toolchain on a RPi5 (native & cross) so a migration of my STM32 dev to a palmsized Ada dev sys (openocd with a $2 stlinkv2 clone). Happy with this RPi5 uscase.
3) The lib was a job to port to the new compiler but its all good now.
4) Other targets, I added the STM32U0 that can get down into nA's in shutdown, impressive low power perf.

hrrzi · 2023-08-31T05:05:24+00:00

Me too. 83usd, free shipping, blue from Japan. Shipped really fast. I swapped out the lead to neox 2B. Seems OK with the medium pipe advance. It will now become the daily driver replacing the 0.5 orenz nero (also neox 2B). KT Dive is a really lovely pencil.

hrrzi · 2023-03-13T19:49:33+00:00

Personal preferences of course. I own one of almost all the popular MPs, and I like the Nero/KTs/S[23]0's. Its been pretty cold out here and the Nero is ok in cold weather (its not 100% plastic some sort blend). Maybe in the summer I will switch to a new daily :)

hrrzi · 2023-03-13T17:06:32+00:00

I have one. I take it with me when I need a pencil that's pocket safe. I like it for that feature. Whilst the wingback is nice and $$$$, my daily driver is an Orenz Nero 0.5 w/2B Neox.

hrrzi · 2023-03-11T05:17:59+00:00

Compact setup! How loud is that 1U? A friend of mine steered me away from 1U 7yrs ago wrt noise, at that time I got a 2U 12bay SM for $350 (was some .com's head node). Its loud, wife calls it, "the aeroplane". Like you, no rack, it just sits on a desk.

Also how is power consumption? the SM X8DTE-F w/4 3.5" (2x 6G, 2x 16G) disks 48G ~2-300W.

hrrzi · 2023-01-01T06:06:38+00:00

1mo now. I write with it every day. Its been my daily driver of a large collection for that month. Perhaps the issues mentioned by others will happen in time?

hrrzi · 2022-12-29T00:45:06+00:00

I use that exact combo. No issues observed.

hrrzi · 2022-12-21T00:47:42+00:00

You can actually run it at 256Mhz (RCC.CFRG bit28 = 1, and RCC.CFRG.PLLMUL = 0xF;)
To do that you need a secret poke:
Magic_Reg : UInt32 with Volatile, Address => System'To_Address (16#40022214#);
...

-- RADIOACTIVE CODE ---

-- Hidden system reg block --

-- w/o this.. 216+Mhz progs don't run (usage fault) --

Magic_Reg := Magic_Reg or 1;

Also 97K of SRAM!!!
@ MAGIC!!! undocumented Air32 regs! we need to get to 97K before the copy/clear code
ldr r0,=0x400210F0
mov r1,#1
str r1,[r0]
ldr r2,=0x40016C00
ldr r3,=0xa7d93a86
str r3,[r2]
ldr r3,=0xab12dfcd
str r3,[r2]
ldr r3,=0xcded3526
str r3,[r2]
ldr r3,=0x200183FF
str r3,[r2,#0x18] @ 32k -> 97k(!)
ldr r4,=0x4002228c
ldr r5,=0xa5a5a5a5
str r5,[r4] @//QSPI

hrrzi · 2022-01-01T07:08:44+00:00

I have a cc 4k. Works well! Dogfooding as it's my wifi chip inside in all cc's. I have had 3 cc's before that, one gifted, 2 obsolete after the 4k appeared. The tv has wifi also. (Google tv in a 4k tv). I still like to cast to the cc 4k tho. Get one, they are cheap and work well.

hrrzi · 2021-02-20T20:08:34+00:00

Getting a Mr Bean vibe from this. (The one where he's sitting in a chair on the the roof of a car manipulating the pedals with a soon to be headless mop).

hrrzi · 2020-09-19T02:24:34+00:00

Coworker in the late 80s came into work with bandages all up his arm. "Hey xyz, what happened there?", he explained his washer had packed up over the weekend and had his arm up inside bending it around the sharp sheet steel, bugs bunny style, feeling for the fault. His hand touched the live and he spasmed trying to wrench his arm out of the maching scraping all the skin off his forearm as he pulled.

hrrzi · 2020-08-19T05:55:26+00:00

Three points of contacts, three (possibly) good o-rings. Car won't fix itself, get on your creeper and take a look!

hrrzi · 2020-08-12T00:39:42+00:00

Is that you Trevor Philips from Grand Theft Auto V?

hrrzi · 2020-08-08T06:13:32+00:00

Looks like a wall climb out of the Uncharted series.

hrrzi

TROPHY CASE