tag:blogger.com,1999:blog-4320675363239807030.post7984063588357042417..comments2022-12-04T06:47:15.223+00:00Comments on Electronics and computing: Converting 5v LCD displays to 3vSteveSmythehttp://www.blogger.com/profile/10720876040452109262noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-4320675363239807030.post-13005196641633886632021-08-26T10:09:25.449+01:002021-08-26T10:09:25.449+01:00Hi Steve,
I've read your post on https://www.e...Hi Steve,<br />I've read your post on https://www.element14.com/community/groups/roadtest/blog/2019/06/15/converting-5v-lcds-to-33v<br /><br />I have a 1602A with the PCF8574 i2C expander. This one has VO connected to a variable resistor.<br /><br />I was wondering if you had to remove the pot in order to allow for the charge pump to drive V0.<br /><br />Regards,<br />DanDanhttps://www.blogger.com/profile/15374464789734017377noreply@blogger.com