RPI AD/DA Extend Board SKU:EP-0022: Difference between revisions

From 52Pi Wiki
Jump to navigation Jump to search
Line 9: Line 9:


==Feature==
==Feature==
1)通过I2C读取.
*1)Support I2C protocol
2)转换速度:小于1ksps 因为实在很低,不好意思说了,实际是11.1sps.
*2)Convert Speed: Less than 1Ksps
3)不带输入保护,需要注入输入范围.
*3)Do Not offer input protect, so please be caution of the range of power supply.
4)模拟输出:250nA 不适用与驱动电路,请使用缓冲芯片进行扩大电流.
*4)Analog Output: 250nA
5)片上跟踪保持功能;
*5)On-chip trace
6)8 位逐次逼近 A/D转换;
*6)8bit A/D convert
7)Dimensions: 1.9cm × 3.35cm
*7)Dimensions: 1.9cm × 3.35cm
----
----



Revision as of 17:50, 2 August 2016

RPI AD/DA Extend Board

Description

This RPI AD/DA extend board reads analog voltage by PCF8591 chip, it can drive DAC module but can not offer power output.
It can be read by shell scripts and it can measure from 0V to 5V. It may has some different value due to different environment.

Because of the conversion speed is a little bit slow and poor accuracy , power consumption is large, worst case needs 200mA.

Feature

  • 1)Support I2C protocol
  • 2)Convert Speed: Less than 1Ksps
  • 3)Do Not offer input protect, so please be caution of the range of power supply.
  • 4)Analog Output: 250nA
  • 5)On-chip trace
  • 6)8bit A/D convert
  • 7)Dimensions: 1.9cm × 3.35cm

Presentation



Package includes

  • 1x ...........

How to use

http://wiringpi.com/extensions/i2c-pcf8591/ 和 参照 http://www.52pi.net/forum.php?mod=viewthread&tid=813


Purchase Links

Shopping car.png

52Pi Store