| Electronics > Projects, Designs, and Technical Stuff |
| Community Bench Meter |
| << < (3/27) > >> |
| xani:
im thinking, maybe "dual display" ? Some nice LED 7-segment for "main" display and 4x20 (or graphic) LCD for other things like menus and other measures. So for example u can have Vrms on nice big LEDs + other measures like Vp-p, Min-Max, or freq on LCD. Or even dual-measure, for example I on LED and V on LCD + power and resistance calculated from it :D |
| GeekGirl:
--- Quote from: xani on January 27, 2010, 01:09:26 am ---im thinking, maybe "dual display" ? Some nice LED 7-segment for "main" display and 4x20 (or graphic) LCD for other things like menus and other measures. So for example u can have Vrms on nice big LEDs + other measures like Vp-p, Min-Max, or freq on LCD. Or even dual-measure, for example I on LED and V on LCD + power and resistance calculated from it :D --- End quote --- I am liking this idea, but I do not want to use a character LCD, I want to use a graphic LCD, with one like the one posted by Curtis, you could have both in 2 lines on the LCD :):) |
| EEVblog:
Cool idea. I think it's gotta be different somehow, not just a bench multimeter. I'm not sure what or how, just offer something compelling, either in form factor and/or combination of features. Be careful not to slide down the oscilloscope functionality slippery slope... Forget mains use, any meter worth building can be battery powered. This is more of a hack idea, but what about a project to design a new engine/user interface for the Fluke 233? It's got a re-flashable micro in the head (don't know about the base), and you could probably replace the LCD with a graphic one. Not exactly low cost though. Dave. |
| Mastro Gippo:
Hehe Kat, I had the same idea sometime ago, but I wasn't going to wait for the heart to stop to call for help, I was thinking about a bunch of electrodes that trigger the power shutdown when they detect a voltage difference between them, caused by an electrocution. I think we can easily make a wireless display like the one Dave reviewed, but it would be hard to design the case. The wireless interface could be used to interface to a PC too. I think we can just start to design the PCB around a cheap and widely available multimeter case, maybe from Dealextreme. As Kat says, graphic LCD/OLED is a must. A micro SD slot is tempting too. I think hacking a Fluke is a bit blaspheme ;D , but maybe if we can find a good multimeter with a nice analog front-end to harvest for cheap, it would save a ton of time. I always wanted to build one of these: http://mondo-technology.com/super.html we can get a lot inspiration from that project! ;) |
| GeekGirl:
--- Quote from: EEVblog on January 27, 2010, 06:14:40 am ---Cool idea. I think it's gotta be different somehow, not just a bench multimeter. I'm not sure what or how, just offer something compelling, either in form factor and/or combination of features. Be careful not to slide down the oscilloscope functionality slippery slope... Dave. --- End quote --- Hi Dave, I definitely do not want to make this a scope lol (Rigol and others have nice cheap units ;)) I am thinking one idea to set it apart is to make the current input separate, so we can compute Power :) Also so we can display current and voltage at the sametime, compute power factor and VA for AC, Power for DC. |
| Navigation |
| Message Index |
| Next page |
| Previous page |