K3 | Hackaday.io

Details

A current limited (300mA pk) boost converter on board can be enabled to build up the storage capacitor from the input supply. The bridge driver provides a quick current pulse, which creates a Laplace force that throws the solenoid into a latched position.

Project Logs

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^2 Multi Color IDC with RPUno^6
ronald.sutherland • 04/19/2017 at 17:11 • 0 comments

Perhaps the colors can help get the wiring correct in the enclosure.
Placed in an enclosure
^1 Cycle test with RPUno^5
ronald.sutherland • 04/19/2017 at 17:08 • 0 comments

I let an RPUno^5 operate three Orbit 58874N valves from 2/5/2017 to 3/29/2017. Most days the three valves were operated ten times each. The runtime got changed a few times as I got drip zones set up for a garden. Some days the K3^1log does not have data for various reasons.
^1 Setup with RPUno^5
ronald.sutherland • 04/19/2017 at 17:06 • 2 comments
K3^0 Solenoid Control with RPUno^5
ronald.sutherland • 11/30/2016 at 01:50 • 0 comments

An interactive Command Line Interface for Solenoid control is wired to LED's to see its function. In my reset all video each solenoid is cycled twice (opps), but the logic control is working. After connecting the K3 board I fixed the control program so it cycles each solenoid once as seen when RPUno with K3 video is seen.
Update1: Added more options to the Solenoid
program (save/load settings to/from EEPROM) and connected some of
Orbits (58874N) latching valves (which work for me with a 24V 50 mSec
pulse). Have a look at the video of RPUno (modified ^4) with K3 controlling some latching valves.
Update2: Added a day/night state machine to the Solenoid program, which loads saved settings from EEPROM after a morning (debounce) at the start of each day, and starts their operation.