logo decals vs TeleFireEight being orange with purple decals might make
sense?
+2022.05.22
+- looking at firmware for v4 board.
+
+ ads131 has driver for ADS131A0X, not quite working?
+ bdale-ui work on teststand ui
+
+ - created new branch telestatic-v4 from master
+ - merged bdale-ui, resolving conflict in altoslib/AltosCSV.java
+ - merged ads131, resolving conflict in src/kernel/ao_data.h
+
+- improper gain setting or higher than expected mV/V on load cell can easily
+ drive INA125 output above the 5V allowed by ADC input. adding a 5.1V, 500mW
+ zener between INA125 and ADC to clamp that and protect the ADC
+
+
+2022.09.17
+- and now, for something completely different...
+
+ What if I re-think TeleStatic to use an ESP32-S3 chip with integrated WiFi
+ radio? Imagine a board in an ammo box with an SMA female and a cheap WiFi
+ whip on top of the box. Looks over the air like an access point with web
+ server. Take any client device (laptop, tablet, phone) with a web browser
+ and use it to talk to the box, check status, initiate a burn, etc. If we
+ include an SD card, then data is stored on board and can be downloaded via
+ WiFi, or pulled out and parsed later.
+
+ One really big win with this approach is that ALL the software involved in
+ operation lives on the board. Only post-processing tools might want to live
+ on a separate computer. And, frankly, if we make "raw" data avaialble in
+ CSV form and have on-board plotting with pdf output .. we'd be about done?
+
+ The onboard 12-bit ADC seems pretty lame, but I've been planning an off-SOC
+ SPI attache ADC anyway, so who cares? The pyro circuit, LED outputs,
+
+ The ESP32-S3 is under $3 each at Q1 in stock at DK, a 56 lead QFN'ish thing.
+
+2022.09.19
+- sadly, the ESP32 series requires a pile of binary firmware blobs to make
+ the wifi and BT stuff work, and because those execute on the same processor
+ and must be linked to the firmware, it just isn't legally possible to write
+ GPL'ed code for this processor series. Sigh.
+
+ So, Keith suggests I use an available SAMD21 part with 256k flash and 32k RAM
+ and an external standalone wifi peripheral, like the uBlox NINA-W131-03B.
+ You talk to it with an AT command set, so we don't have to deal with a binary
+ firmware blob. Amusingly, this seems to have an ESP32 inside!
+
+- bought a NINA eval board to play with .. should be able to hook it to one of
+ my existing proto boards?
+
+2022.11.10
+- looks like I have 25 pieces of STM32L151VCT6A, which might be well used for
+ an initial TeleStatic board run? 256k flash, 32k RAM
+
+
projects / hw / quantimotor / blobdiff