Hi Vivviangrace, Welcome to EasyEDA. There are several minor problems with your schematic. Don't worry, they are easy to fix. In EasyEDA there are pure schematic symbols and there are simulatable spice symbols. Many simple schematic symbols can be turned into spice symbols but in most cases it is easier to start with the ready-made spice symbols from the EasyEDA Libs panel. 1. The LM7805 has no simulation model associated with it. It is just a schematic symbol rather than a simulatable SPICE symbol. Please use the LM7805EE spice symbol from the EasyEDA Libs panel. 2. The prefix for the LM7805 regulator is wrong, it should be `U`. `Q` is for a bipolar transistor. Using the LM7805EE spice symbol from the EasyEDA Libs panel will correct this. 3. Pins 2 and 6 of the 555 timer are not connected (they should be to make an oscillator). 4. M1 is the default, low power NMOS device. You probably need to make it a specific high power device. For more on this, please see below. 5. VolProbe `V2` is redundant and should be removed. 6. Permanently open switches S1 and S2 are floating and should be removed. 7. The transformer you have chosen is an ideal transformer. It effectively has an infinite inductance (it works down to DC). To simulate what you want to see at the output of the induction coil, you need to use the more flexible coupled inductor model (just below it in the EasyEDA Libs panel). 8. The 555 circuit probably won't start up as you might expect. It will need one of several possible simulation "tricks" to get it started. For more on this, please see below. To understand how to run simulations in EasyEDA please have a read through of the EasyEDA Simulation eBook and a play with the examples in there: https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub In particular see: **Initial conditions and starting up circuits** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.46r0co2 **Device models** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.43ky6rz (The Google link above is to the original copy of the Simulation eBook which you can also find at: https://easyeda.com/Doc/Simulation-eBook/ but the table of contents in the EasyEDA copy is broken and misses out some sections. We are working to fix it but in the meanwhile the copy published to the web from Google Drive works just as well.) **About Transformers in EasyEDA** Transformers in EasyEDA can be made using the individual inductors coupled together using the 'K' coupling factor parameter or using the basic ready made Transformer parts in the EasyEDA Libs. The introductory sheet in the Project below briefly describes the basic ready made parts in the EasyEDA Libs. These examples in this project should help you understand how to use them: https://easyeda.com/project_view_Transformers-and-coupled-inductors_LWewOI0ic.htm For more information on how to build transformers using individual inductors and how to set up the parameters of the ready made transformers using coupled inductors, please see the other schematics in this Project.

Please see: **timer circuit fixed** https://easyeda.com/editor#id=qwIigdbLJ in: https://easyeda.com/my-projects/ZmaYWw5FD :)

I need help can't simulate my object counter circuit... why? https://easyeda.com/editor#id=d828f9f1ad6c46afb164a58091a5ff7c

Hi shenaportugal, Welcome to EasyEDA. Sorry but your project is private so only you can see it. How to share: https://easyeda.com/Doc/Tutorial/Share.htm#Sharing Then please read: https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f in particular, Section (3). :)

Hi, i'm having a problem with the simulation [https://easyeda.com/editor#mode=sim,id=5ba14a7630774fba939e606ecd4ac016](https://easyeda.com/editor#mode=sim,id=5ba14a7630774fba939e606ecd4ac016)

@H00367389, You are posting on a thread that is over 2 years old. It is specifically requested not to do this in: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a) Please post a new topic giving more information on your problem in line with the advice given in in the link above. Thanks.

@H00367389, Before you post back please read (3) in (2) in the link above.