Tell us about yourself!
Hi there aplavins,With regards to your method:1) The Vcc for the 2104 comes from battery + instead of panel +So you modified the Vcc to be at the panel or at the battery?2) Added 5.1V zener diodes to protect the arduino inputs.Will the following be ok to use? http://sg.element14.com/nexperia/1n4733a-113/zener...May I know the exact location of where you place diodes from the inputs?
Hi there, may i know which code you used for this project?
Hi there, may I enquire if you have edited the code inside? Since the given code will burn the Q3 Mosfet.
Hi Zopinter,Based on your current design in comparison with this one, I have to say that you do not have the charge controller at all.From the link you provided which shows the MPPT.jpg, your circuit and this only has a similarity of just sensing the solar amps, batt and battery volt and amps that's all.Thus i am quite confused as to you how you mentioned you followed closely to the design.
Hi there,Yes I understand you have modified it a lot, however in the schematic I don’t see the controller but the buck converter so I assumed you only have the converter itself and no controller.Thanks for the clarificationApologies but this is how is see from the schematic point of view.
Hi Keith,As I am following closely on your circuit, I noticed that the voltage does not cut off when it reaches its max limit.Even when I lowered the values, the voltages still doesn't cut off. When I hooked it up to the solar panel, the voltage on the battery continue to rise to match the solar panel even when it is at 12V only. I wish to stop the solar panel from overcharging.Is it possible? (Even though the codes inside you have provided already has done that)RegardsJohn
If that is the case its not consider as MPPT already I believe? Since this is a PWM method.
Dear Keith,Thanks for the input, unfortunately due to lack of time I decided to go ahead and purchased an extra uno instead to solve that issue of unresponsive Uno outputs.I would like to discuss with you another issue which is the ESP8266 module,I noticed that the channel api key is to be entered into the code, however my question is that which api key are you talking about?Is it the write api key/read api key/account api key?I tried all of the options above but I still did not receive any data collected from the channel.
Hi Keith,Under the LCD section, I am following this circuit closely. However, this portion here "Vcc--> 5V , GND-->GND, SDA-->A4 and SCL-->A5"You have to use a 16bit expander in order for it to work?
Thank Keith for always replying quickly!I just realised that your lcd display already has the serial backpack included.I purchased mine without that backpack itself, is there another method for it?
Hi Keith,Thanks for the input! Noted that the circuit isn't working which is unfortunate.I was analyzing your circuit for which I noticed some irregulairty.Some of your capacitors are polarized and non polarized, does this polarity affect the connection? As your overall schematics has no non polarized capacitors RegardsJohn
Hi there Keith,Thanks for the response, by integrate I would mean that I have already built a buck-boost converter and inverter of my own, I wish to integrate this 2 together in the charge controller.Is it possible?
Hi Keith thanks again for replying!My inverter is able to produce a power of 230W which should be fine according to your range limit. It is current operating at 12V.As for the buck boost converter, I made it with this link below:https://www.instructables.com/id/DIY-BuckBoost-Con...The specs are Input: 6V-30V Output: 0-20V Output Current: 1-2A.So I was wondering by removing the converter you have built in replacement of mine is it possible? As for the circuitry wise I not sure if its possible.Again, you mentioned that the V3.1 isn't working, may I enquire if the V3.0 is ok?
Hi there such a wonderful project you have here, I currently already have a inverter and buck/boost converter built up.May I know if its possible to integrate it together?RegardsJohn
May I know what is the duty cycle of this circuit?
The code has seem to be changed, I am unable to replicate the same results as with the previous code... may I have the older code uploaded?
Will this design allow for a voltage of 5V, 1A output to charge current generation smartphones?
I can't seem to produce a 1-2A based on this specs, I am only able to get 0.3A at most to charge a smartphone, any solutions on this?