The process of designing the battery charger began with the making of a model for the circuit, which will include an SSD1306 screen and a Li-ion cell holder mounted on a 1.5 mm thick PCB. In addition, we had to model the circuit for the DC-DC Buck Module,...
Let's have a closer look at the circuit. It consists mainly of three sections: the XIAO ESP32S3 and SSD1306 display are connected via the XIAO MCU's I2C pins in the first section. The voltage divider part comes next, and it is made up of two resistors...
After finalizing the PCB and generating its Gerber data, I sent it to SEEED Studio for samples. The PCB was ordered in a black solder mask with white silkscreen. PCBs were received in a week, and their quality was super good considering the rate, which...
Using a solder paste dispensing needle, we first add solder paste to each component pad individually to begin the PCB assembly process. In this instance, we are using standard 37/63 solder paste.Next, we pick and place all the SMD components in their...
Here is the finished PCB assembly end result: a Li-ion cell charging circuit based on the TP4056 with an SSD1306 display and header pins for an XIAO MCU and Li-ion cell holder. The assembly is now prepared for the first test after we installed the XIAO...
The end product of this project is a lithium-ion charger with an integrated battery monitoring system. The voltage of the battery is detected by the XIAO MCU and shown on the OLED screen. The TP4056 features two indicator LEDs. One LED illuminates during...
Our initial task was to design this project, which was made possible by a 3D model of the Xbox Controller. The controller would be held up by its two handles on a base that would house an RGB driver PCB, according to my design. In order to create the...
After finalizing the PCB and generating its Gerber data, I sent it to SEEED Studio for samples. The PCB was ordered in a white solder mask with black silkscreen. PCBs were received in a week, and their quality was super good considering the rate, which...
Using a solder paste dispensing needle, we first add solder paste to each component pad individually to begin the PCB assembly process. In this instance, we are using standard 37/63 solder paste.Next, we pick and place all the SMD components in their...
Following PCB assembly, we connected the JST wire of the lithium cell to the JST connector on the circuit board and then connected the JST wire of the switch to the JST connector on the circuit board.To confirm if the power management system is functioning,...
After the tedious build, here's the result so far. The best thing is that we used the same surface offset as the controller's handle, so it fits precisely in the holder and keeps the controller from falling out of place. This gives the Xbox controller...
An XIAO ESP32C3 microcontroller and an XIAO extension board manufactured by Seeed Studio comprised the heart of this project. It comes with rich peripherals that include an OLED, RTC, SD Card Sot, passive buzzer, reset/user button, 5V servo connector,...
Here's the end result of this super-small build: a digital wrist watch. The XIAO expansion board serves as a functional clock module in this useful and functional watch. The inbuilt buzzer can be used as an alarm indicator should we introduce an...
What’s up my friends, welcome back. This below is the PCB that I’ve designed for my project. I’ve tried to make it as small as I could so it could fit inside of a basic wall electric box. This project works at 220V so make sure you stay safe and...
Let's see all the needed parts and also check the schematic for this project below in order to know where to connect each part. We need the 220V to 12V regulator, the solid-state relay, an ESP32S smd version, some SMD capacitors and resistors, a diode,...