jwettroth's post re MX170

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lizby Guru Joined: 17/05/2016 Location: United States Posts: 3616	Posted: 05:20pm 08 Mar 2025       Starting a new thread, since jwettroth posted about an ultra-low current Microchip MX170 in the MMBasic history thread, and I'd like to ask some questions but don't want to hijack the thread.   jwettroth said   I have settled on the MX170 version of the micromite as a work horse for my quick turn "consulting" projects.  . . .  I can take a micromite chip, a couple of chinese modules for RTC, audio player and a mono or color LCD for user interface.  I usually have a tick timer interrupt that reads keys, maintains timers and sets flags.  The micromite turned down to an F clock of 5 Mhz will run on about 1 mA with an lcd module and rtc. And later   Quote   The low power stuff is just turning down the clock and using a 3v LCD module.  You can get fancier by having the RTC generate alarms and sleep the processor.  With a 1 minute alarm tick and a keyboard interrupt, you can update the display time and handle keys at low power.  The generic LCD modules draw a half a milliamp. The MX170 chip in thru-hole was not available for a while, but mouser now has it for $5.08. I have BigMic's MuP V3, and I thought he had released the Gerber's for that, but I haven't found them yet. They don't have sockets broken out for an LCD or RTC or for other peripherals except for I2C. What LCDs are you using--4-line by 20 or something on SPI? You mentioned color and I thought that would imply SPI. How do you program your devices? Do you program them with something like the MuP and then move them to a more specific device without programming, or do you have programming on each PCB? I know the MX170 is CaptainBoing's favorite, and he has posted much code on FruitOfTheShed. Can you post some photos? (Don't worry, I'm not planning to start a business.) ~ Edited 2025-03-09 03:21 by lizby PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed