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Thanks for sharing.
Is it possible even if I am not at home? I want to turn on / off AC devices using this method. What extra hardware / software will require to implement this?
I could resolve warning: espcomm_sync failed error. However, I am not able to triger relay. It seems that relay get small amount of voltage from Nodemcu board (wimos). The red LED is very dimly lit. Could you please help resolving this.PS. in my other project LED on Relay is brighly lit.
I am not from electronics field. I am an accountant in Mumbai. However, with some efforts I could complete two projects with ultrasonice range finder and Relay.To further explore knowledge on this, I bought your book on amazon.in which includes above mentioned project. I want to do this project for controlling AC devices like Bulb and Fan from my mobile phoneHowever, I am stuck with error at initial stage. Below mentioned is the error.warning: espcomm_sync failederror: espcomm_open failederror: espcomm_upload_mem failedI will be grateful, if you could help me resolving these errors.