m********r
发帖数: 334 | 1 本科毕业以后再没碰过模电，想找一个最简单的方案，要求液晶7段码显示，外接零件
越少越好。我想单片机应该包含ADC和译码电路，请大家推荐一两个。 |
g******u
发帖数: 3060 | 2 it can be very simple.
digikey sells some LCD displayed panel mount tiny voltage meter at $20.00
ish. You get a 5V from somewhere, use a divider then read this divider
volage. By adjusting some pins and gains, you are good to go.
No pragramming or complicated circuitry is needed. |
m********r
发帖数: 334 | 3 谢谢，我就需要这么简单的东西,请问量程和精度如何？
【在 g******u 的大作中提到】
: it can be very simple.
: digikey sells some LCD displayed panel mount tiny voltage meter at $20.00
: ish. You get a 5V from somewhere, use a divider then read this divider
: volage. By adjusting some pins and gains, you are good to go.
: No pragramming or complicated circuitry is needed.
|
g******u
发帖数: 3060 | 4 there are tons of options, as you didn't define any applications, no one can
help you. Although, if not for very complicated circuitry, I doubt you can
be any more accurate than they do.
go to digikey - Industrial Controls, Meters - •Meters - Panel, Digital
(451 items)
and good luck.
【在 m********r 的大作中提到】
: 谢谢，我就需要这么简单的东西,请问量程和精度如何？
|
E*****a
发帖数: 757 | 5 听着不简单。你这个要智能的判读范围么？精度？
不如你网上抄个万用表的电路，改一下了事
【在 m********r 的大作中提到】
: 本科毕业以后再没碰过模电，想找一个最简单的方案，要求液晶7段码显示，外接零件
: 越少越好。我想单片机应该包含ADC和译码电路，请大家推荐一两个。
|
i*****t
发帖数: 24265 | |
N*******g
发帖数: 1089 | 7 There are some ucontroller with LCD driver embedded. They can be less than $
5. It is good and cheap.Even you resistor's changes are nonlinear, you can
linearize it in your uncontroller.
【在 m********r 的大作中提到】
: 本科毕业以后再没碰过模电，想找一个最简单的方案，要求液晶7段码显示，外接零件
: 越少越好。我想单片机应该包含ADC和译码电路，请大家推荐一两个。
|
a****l
发帖数: 8211 | 8 "uncontroller"?? That's something new today.
$
【在 N*******g 的大作中提到】
: There are some ucontroller with LCD driver embedded. They can be less than $
: 5. It is good and cheap.Even you resistor's changes are nonlinear, you can
: linearize it in your uncontroller.
:
|
N*******g
发帖数: 1089 | 9 ucontroller means micro-controller
【在 a****l 的大作中提到】
: "uncontroller"?? That's something new today.
:
: $
|
a****l
发帖数: 8211 | 10 Yeah, I have heard about "ucontroller", but have never heard about "
uncontroller" before...
【在 N*******g 的大作中提到】
: ucontroller means micro-controller
|
N*******g
发帖数: 1089 | 11 Now you heard of it.
【在 a****l 的大作中提到】
: Yeah, I have heard about "ucontroller", but have never heard about "
: uncontroller" before...
|
