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Power Supply board for NodeMCU ESP8266
Overview: Power Supply board for NodeMCU
In this tutorial, we will make a Power Supply board for NodeMCU ESP8266. Here, we will use a battery boost converter circuit to operate the NodeMCU with a 3.7V battery. Obviously, the battery gets discharge after using it for a long time. So, we need to integrate a battery charging circuit that has a built-in battery management system. This will protect your battery from over-charging and over-discharging, so the battery lasts longer.
Most of the lithium-ion batteries found in the market come with 3.7V and 4.2V when fully charged. This is not enough to power up the NodeMCU Board. So we need to convert the voltage of the battery to 5V. For this reason, we are using a small boost converter module. Which is made using some inductors, IC & resistor. Similarly, the TP4056 Battery Charger Module is used to charge and manage the battery.
Besides this, if you don’t want to power the NodeMCU board using the battery, you can use the DC Power Adapter. we can power this board using a 9V/12V DC Adapter. The LM7805 Voltage regulator IC will limit the voltage up to 5V only.
Components Required
Following are the components required for making this Power Supply board for NodeMCU ESP8266. We can easily purchase all the components from Amazon. We provided the component purchase link below.
Power Required By NodeMCU
NodeMCU ESP8266 operates at 5V & 3.3V. It has an onboard LDO voltage regulator to keep the voltage steady at 3.3V.
Power Supply board for NodeMCU ESP8266
Overview: Power Supply board for NodeMCU
In this tutorial, we will make a Power Supply board for NodeMCU ESP8266. Here, we will use a battery boost converter circuit to operate the NodeMCU with a 3.7V battery. Obviously, the battery gets discharge after using it for a long time. So, we need to integrate a battery charging circuit that has a built-in battery management system. This will protect your battery from over-charging and over-discharging, so the battery lasts longer.
Most of the lithium-ion batteries found in the market come with 3.7V and 4.2V when fully charged. This is not enough to power up the NodeMCU Board. So we need to convert the voltage of the battery to 5V. For this reason, we are using a small boost converter module. Which is made using some inductors, IC & resistor. Similarly, the TP4056 Battery Charger Module is used to charge and manage the battery.
Besides this, if you don’t want to power the NodeMCU board using the battery, you can use the DC Power Adapter. we can power this board using a 9V/12V DC Adapter. The LM7805 Voltage regulator IC will limit the voltage up to 5V only.
Components Required
Following are the components required for making this Power Supply board for NodeMCU ESP8266. We can easily purchase all the components from Amazon. We provided the component purchase link below.
Power Required By NodeMCU
NodeMCU ESP8266 operates at 5V & 3.3V. It has an onboard LDO voltage regulator to keep the voltage steady at 3.3V.