/challenges-projects/design-challenges/enchanted-objects/b/blog/posts/magichat---14---blood-pressure-measurementI finally succeeded in measuring blood pressure in an almost reliable way. In this post I will show the results of my experiments In order to determine the law between the value returned by the Force Sensor Resistor and the blood pressure, I run...en-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/enchanted-objects/b/blog/posts/magichat---14---blood-pressure-measurementFri, 22 May 2015 06:52:09 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:68a1a420-d8cb-4a07-9e96-411af3a188bcbalearicdynamics1<p>Be aware that the map function is very useful in many cases, but it is not a math that you control too much in precision and rounding.</p><p>&nbsp;</p><p>Anyway your approach is interesting as it is optimised in the almost limited (for math) Arduino environment. By a bare diagnostic point of view, a more reliable value acquisition integrates two type of measure in the same moment: sphygmomanometer and finger sensor. This last anyway is the most efficient as it can be done very fast and almost in every condition.</p><p>&nbsp;</p><p>What approach did you used to produce the analog signals? Using red light on the finger ?</p><img src="https://community.element14.com/aggbug?PostID=20900&AppID=117&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/design-challenges/enchanted-objects/b/blog/posts/magichat---14---blood-pressure-measurementFri, 22 May 2015 06:03:28 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:68a1a420-d8cb-4a07-9e96-411af3a188bcWorkshopshed0<p>Looks great. I do like that &quot;map&quot; function, will likely use it myself for servo position.</p><img src="https://community.element14.com/aggbug?PostID=20900&AppID=117&AppType=Weblog&ContentType=0" width="1" height="1">