The 5V boosted voltage is connected to switch and the switch is connected to 5V Vin pin of NodeMCU. Using the Boost Converter Module 3.7V is boosted to 5V ( can work from 2.8V input to 4.2V input). On the other hand, if you don’t want to power up the NodeMCU using DC Adapter, you can use 3.7V Lithium-Ion or Lithium Polymer Battery. Hence you can power up the module using 9V/12V DC Adapter or by 9V Battery. The output from the Voltage regulator is connected to the Vin pin of NodeMCU & GND is connected to GND. With an increase in voltage, there is more heat dissipation that requires a bigger heat sink. But is recommended to use the input voltage up to 15V only. The LM7805 Voltage regulator IC can take the input voltage from 7V to 35V. We used 470uF & 100uF Electrolytic Capacitor to avoid DC fluctuations and remove voltage spikes. The circuit can be powered using two methods, one with 9V/12V DC Adapter and other with 3.7V Lithium-Ion Battery.įor powering the Board using DC Jack, we have used DCJ0202 Female Jack. The Circuit Diagram for Power Supply Circuit for NodeMCU with Battery Charger & Boost Converter is given below. Power Supply Circuit for NodeMCU with Battery Charger & Boost Converter To learn more about this module, you can go through its datasheet here: TP4056 Module Datasheet. Due to the internal PMOSFET architecture and anti-reverse charging path, no external isolation diodes are required. The TP4056 is suitable for USB power and adapter power supplies. In addition to safely charging a lithium battery, TP4056 BMS Board also provides the necessary protection required by lithium batteries. This 3.7V Battery Charger TP4056 module is made for charging rechargeable lithium batteries using the constant-current/constant-voltage (CC/CV) charging method. For the different input ranges, it consumes a different amount of current to produce a balanced output.Ĥ. This module operates at a frequency of modules operate at frequency 150KHZ. This small tiny circuit boosts the voltage level and provides the amplified stabilized 5V output. This is the Step-Up DC-DC Boost converter module which provides 5V DC stable voltage output at various input ranges between 1.5V to 5V. S.N.ģ.7V to 5V Step-Up Boost Converter Module The component purchase link is given below. All the components can be easily purchased from Amazon. Check more about Nodemcu Power requirement here: Nodemcu ESP8266 Datasheetsįollowing are the components required for making this NodeMCU Power Supply project. This is because Computer USB port can provide less than 500mA of current. Thus supply power from Micro-USB Cable is not enough for NodeMCU Board when we are adding multiple sensors or modules to the Board. During boot or wifi operation it’s drawing up to 200mA peak current. The power required by NodeMCU is 600mA, as ESP8266 pulls as much as 80mA during RF transmissions. NodeMCU can be powered using Micro USB jack and VIN pin (External Supply Pin). For 3.3V there is already an LDO voltage regulator to keep the voltage steady at 3.3V. If you don’t want to power the circuit using Battery, you can use the DC Power Adapter. The LM7805 Voltage regulator IC limits the voltage up to 5V only. Similarly to charge the battery and manage the battery we will use TP4056 Battery Charger Module.Īpart from this we can power this circuit using 9V/12V Adapter as well. That is the reason why we are using a small boost converter Module made using some inductors, IC & resistor. So we need to convert the voltage from Battery to 5V. Most of the Lithium-Ion Batteries available in the market can only fully charge up to 4.2V which is not enough for NodeMCU Board. Earlier we designed Power Supply for ESP32, we will redesign the same circuit here for ESP32. The Battery can get discharged after using it for a long time, so we will also integrate a Battery Charger Circuit to the Board which has a feature of Battery Management System. We will also integrate a Battery Booster or Boost Converter Circuit so that NodeMCU can be operated through 3.7V Lithium-Ion Battery. In this tutorial, we will learn how we can make Power Supply for NodeMCU ESP8266 Board. Power Supply Circuit for NodeMCU with Battery Charger & Boost Converter.3.7V to 5V Step-Up Boost Converter Module.
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