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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    Hi Zoltan,I have assembled the circuit and testing on my bench with a 23-24v psu.(intended to use with a panel with specs of Voc=38.3v)after tinkering with few parameters, I have some questions if you could clarify, please.....I'm using your MPPT_BUCKany_with_PWM_5_86.ino script with some bits from Keiths's code.1-Iinside your case selections, I have a few questions if you could clarify 2-does this logic stop the charging battery when it reaches a certain voltage? 3- if (sol_amps < 0.3) charger_state = FLOAT; // If battery voltage is above 13.5, go into float charging ***** how do you calculate float voltage from solar Amp?case MPPT: // the charger is in the bulk state ...

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    Hi Zoltan,I have assembled the circuit and testing on my bench with a 23-24v psu.(intended to use with a panel with specs of Voc=38.3v)after tinkering with few parameters, I have some questions if you could clarify, please.....I'm using your MPPT_BUCKany_with_PWM_5_86.ino script with some bits from Keiths's code.1-Iinside your case selections, I have a few questions if you could clarify 2-does this logic stop the charging battery when it reaches a certain voltage? 3- if (sol_amps < 0.3) charger_state = FLOAT; // If battery voltage is above 13.5, go into float charging ***** how do you calculate float voltage from solar Amp?case MPPT: // the charger is in the bulk state if (sol_volts >= 18.00) ******Where did you get the 18v value? how do if find what's relevant to my panel and what is the purpose of this IF? { pwm_value--; analogWrite (PWM_PIN, pwm_value); } else if (sol_volts < 14.00) ******Where did you get the 14v value? how do if find what's relevant to my panel and what is the purpose of this IF ? { pwm_value++; analogWrite (PWM_PIN, pwm_value); } else { MPPT_PO(); //MPPT_IC(); } break; Please shed some light if you could.regards,Las

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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    Thank you for clarifyingthis.I can see, print_data() function was commented inside the main loop. Isthere any problems enabling it temporarily as I don't have a 20x4 display toconnect?.I wanted to attach 1.3ich OLED or 16x2 LCD(smallerenclosure), but wanted to make sure its functioning as expected and check theparameters through serial monitor.Then later on to start changing with display function of thecode. Thank heaps for your writeup

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