- Thu Jun 13, 2019 4:52 pm
I made this a little less that two years ago. I wanted a remote that I could control a couple of ESP relays in the house. I wanted to to use a bigger enclosure so I would have more buttons for additional units. I also wanted a display so I could get some more information. I looked through my stock of displays. I have some 20x4 character displays but considered it too big an heavy. I have a lot of color TFT displays but I didn't want to spend a lot of time developing software for it. I wanted something quickly. I had oled displays and have used them before, software development for it would be simple and quick. I have other monochrome 128x64 lcds but I thought I would have to do more development for them. They were a consideration.
I then looked at my stock of enclosures and tried to match an appropriate LCD plus the required space for some button switches, size to be determined. I loved how well the 0.96" oleds fit into the small enclosure. I wasn't able to use as many switches as I would have liked. I did a dry fit of all the pieces and it all worked so well I just had to do it.
I posted to the User Projects forum with the details. More pictures showing the insides. You can see the 3.3v regulator at the bottom of the ESP. I have two stacked together on that spot.viewtopic.php?p=69867#p69867
I have a switch on the side of the enclosure in series with the battery. I wanted something quick and decided that if I decided to leave the switch on if I only wanted to use sleep mode. It does automatically go into sleep but I tended to just use the switch and not worry about discharge of the battery. I had do a sleep current test but I forget what it was. Not as good as I had wanted. The battery is only rated at 300mAH. The batteries I bought were not out of China (Israel I think) and I had more confidence in the rating.
While this was to be a quick project, it still took a lot of work. I did want it too look as good as possible. I took my time drilling and filing so that it was as good as I could do. I was expecting to show it at work so I wanted it to look as close to professional as possible.
I had plans to make a circuit board(s) to integrate all the parts and to make a few more of these. I bought some displays without the attached pcb. I would still like to do it but I doubt if I will for some time. To many other thing with a higher priority.
In the end I don't use that remote anymore. Originally I wanted something with more switches. I didn't want to have to go through menus to turn something on or off. Instead I use the one below. It is based on the capacitive touch board available cheaply out of China. I use the back of the board as it is flat and I can match the surface of the lid. I haven't done anything as far as a better looking label yet. Green paper dots for some contrast with the felt tip marker.
I had a box that was the right size. The box just fits a 18650 battery without being excessively thick. It uses the same oled as the above remote. Currently I display the action and the RSSI values from my router to this remote. And from the target relay and the router. On the bottom row I display the countdown timer used to go into sleep mode. 1 turns on relay 1. The switch position below it turns 1 off. A is for all on for three lamps in my living room. 5 is an individual relay, not included in the A-all.
This above remote isn't as small/cute as the one above. I just find it more practical for controlling more relays.
Speaking of relays. I had threw together four wired modules-power supply-relay boxes. But I wanted to make a pcb to make a batch of "standard" relay modules. And that turned out to be the ones below. Currently one red status led. The other is a 1 Watt white led. So I can use it for a night light without having to plug anything into it. The power supply had the extra capacity so I decided to use it.viewtopic.php?p=80987#p80987
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Last edited by rudy on Thu Jun 13, 2019 8:57 pm, edited 1 time in total.