# Powering a wemos d1 pro **URL:** \ **Category:** Hardware\ **Created:** [October 28, 2021, 8:36am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868 "2021-10-28T08:36:29Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\ **Post date:** [October 28, 2021, 8:36am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/1 "2021-10-28T08:36:29Z")
I tried this before and it ended up with a dead wemos. So a have a 5v 20amp PSU. I want to power both the d1 Pro and stripes of PSU. So I wired the 5v on the wemos to the 5v on the psu and ground to the negative on The psu… And then the pixel + to the 5v psu and then - to the - on the psu… = smoking wemos… Help. ---
**Author:** ![tonyno](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/tonyno/32/242_2.png) [@tonyno](https://wled.discourse.group/u/tonyno)\ **Post date:** [October 28, 2021, 2:30pm UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/2 "2021-10-28T14:30:23Z")
You connected something wrong. Double-check everything. ---
**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\ **Post date:** [October 28, 2021, 7:19pm UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/3 "2021-10-28T19:19:36Z")
Never thought to double check, never thought to pull a multi meter either… 🙄 So since it wasn’t wired wrong… is the d1 mini Pro wired different to a d1 mini? There Aliexpress wemos so probably a clone, anything odd between brands? ---
**Author:** ![huggy-d1](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/huggy-d1/32/51_2.png) [@huggy-d1](https://wled.discourse.group/u/huggy-d1)\ **Post date:** [October 28, 2021, 8:59pm UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/4 "2021-10-28T20:59:00Z")
If you are trying to use WLED, you will need a custom compile to use the D1 Mini Pro which has 16MB RAM vs 4MB RAM for the D1 Mini. ---
**Author:** ![woehaa](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/woehaa/32/2027_2.png) [@woehaa](https://wled.discourse.group/u/woehaa)\ **Post date:** [October 29, 2021, 7:37am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/5 "2021-10-29T07:37:01Z")
Just out of curiosity : what voltage did you measure over the 5V-GND of the D1? Is it exactly 5V? Also do not underestimate voltage spikes. Protect your pins/board with a capacitor, for example. Never simply connect it to a power supply if that can bring more than the board specs require ---
**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\ **Post date:** [October 29, 2021, 10:25am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/6 "2021-10-29T10:25:48Z")
I’ve used the standard compile and it’s ran fine… ---
**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\ **Post date:** [October 29, 2021, 10:29am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/7 "2021-10-29T10:29:30Z")
I’ll wire up a fried board and let you know, it was a while ago it went up in smoke. I only had a few pixels hooked up to it when I wired it. So would be shocked if a voltage spike. ---
**Author:** ![lxkev](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/lxkev/32/10064_2.png) [@lxkev](https://wled.discourse.group/u/lxkev)\ **Post date:** [October 29, 2021, 10:35am UTC](https://wled.discourse.group/t/powering-a-wemos-d1-pro/3868/8 "2021-10-29T10:35:39Z")
![wled-example-wiring-5v-v3](https://global.discourse-cdn.com/free1/uploads/wled/original/2X/9/98590521b32308caa7c65aa33b5b1fd85de813de.png) This is what I did