2 layers50 × 65.5 mm
Industrial 4-Channel Isolated Digital Input Output Board
sitlesh/4-Channel-Industrial-Isolated-Input-Board
Industrial-grade 4-channel isolated digital input PCB (24V to 3.3V) designed in KiCad and simulated in LTspice.
29 parts
Open-source KiCad boards
6 match “sitlesh”Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.
- 2 layers38 × 51 mm
Led flasher
sitlesh/555-Timer-PCB-Design
A manufacturing-ready 2-layer PCB layout designed using KiCad.
10 parts - 2 layers80 × 60 mm
ATmega controller board
sitlesh/ATmega328P-Custom-Development-Board
A custom-designed, compact ATmega328P microcontroller board with an on-board 5V voltage regulator
16 parts - 2 layers80 × 50 mm
IoT Enabled Smart RS-485-Modbus Sensor Node
sitlesh/IoT-Enabled-Smart-RS-485-Modbus-Sensor-Node
Industrial-grade Modbus RTU communication node featuring full galvanic isolation between the ATmega328P logic block and the RS485 network. Designed in KiCad with an optimized on-board LM2596 switching buck regulator.
24 parts - 4 layers50 × 50 mm
STM32-4L MCU BOARD
sitlesh/STM32-4L-BOARD
A highly compact, professionally optimized 4-layer custom development board for the STM32 Microcontroller, designed using KiCad.
28 parts - 2 layers79.5 × 50 mm
Ultra Compact STM32-Smart Data Logger Gateway
sitlesh/Ultra-Compact-STM32-Smart-Data-Logger-Gateway
KiCad-based 2-layer custom PCB design featuring an on-board Micro SD card slot (SPI), dual crystal oscillators (8MHz & 32.768kHz), and integrated power management. Includes production-ready Gerber and Drill files.
53 parts