2x20 Pin Header (2mm pitch)

Through Hole straight pin header, 01x03, 2.54mm pitch, single row #connector #pinheader #tht

Through Hole straight pin header, 01x04, 2.54mm pitch, single row #connector #pinheader #tht

Through Hole straight pin header, 01x08, 2.54mm pitch, single row #connector #pinheader #tht

Through Hole straight 15 pin header, 01x10, 2.54mm pitch, single row #pinheader #tht #SimplifiedFootprint

Through Hole straight pin header, 01x10, 2.54mm pitch, single row #pinheader #tht #SimplifiedFootprint

Form of electrical connector

Through Hole straight pin header, 02x06, 2.54mm pitch, double row #pinheader #tht #simplifiedFootprint

A board to use any PWM output with a 3 pin header

Through hole straight pin header, 1x04, 4 pin, 4-pin, horizontal, angled, 2.54mm pitch, 6mm pin lenght single row

Seeed Studio XIAO nRF54L15 Board (Pin Header Removed, JST-PH Battery, Pushbutton Added)

Through Hole straight pin header, 01x07, 2.54mm pitch, single row #connector #pinheader #tht

Simple inline 2 pin header analog filter using common 603 sized components

Through Hole straight pin header, 02x06, 2.54mm pitch, double row #pinheader #tht #simplifiedFootprint

Through hole straight pin header, 1x02, 2 pin, 2-pin, vertical, 2.54mm pitch, 6mm pin lenght single row

Through hole straight pin header, 1x04, 4 pin, 4-pin, horizontal, angled, 2.54mm pitch, 6mm pin lenght single row

This is a USB type C female header to 6 pin pinout for SPI protocol. Do not use this for USB protocol. This is meant to be used with Scale Snap 3D to reduce RF noise across (max) 1 meter distance.

Elementos necesarios en Proteus 8 Busca estos componentes en la biblioteca (modo "Pick Devices"): Conector J1772 – usa un conector genérico de 4 pines (como HEADER 4 o un DB9 si necesitas algo similar). Resistencias: R1: 150 Ω R2: 330 Ω R3: 150 Ω R4: 2.7 Ω Interruptor SPST o jumper simulando "Punto A", "Punto B" y "GND". Fuente de alimentación de 5V para simular BAT1. Ground (GND) para las conexiones a tierra. Batería (Battery) de 5V (puede ser una batería o una carga equivalente en Proteus). Indicador LED (opcional) si quieres ver visualmente la salida de carga o conexión. 🛠️ Pasos para construir el circuito Sección del conector (lado izquierdo) Coloca un conector de 4 pines y nómbralo "J1772". Conecta el primer pin a una fuente de 5V opcional (simulando señal de control). Añade las resistencias R1 (150Ω) y R2 (330Ω) en serie, con un nodo medio hacia “Punto A”. Conecta el otro lado de R1 a "Punto B". Conecta el otro extremo de R2 a tierra. Agrega interruptores SPST para "Punto A", "Punto B" y "GND" para simular las uniones cuando se conectan al cargador. Sección de carga (lado derecho) Coloca las resistencias R3 (150Ω) y R4 (2.7Ω) tal como en la imagen, entre el conector y la batería. Coloca una batería (BAT1) de 5V, y conecta el negativo a tierra. Asegúrate de cerrar correctamente los interruptores (simulando conexión). 🔄 Simulación Usa "Interactive Simulation" en Proteus. Agrega etiquetas como "PUNTO A", "PUNTO B", etc., si deseas facilitar el seguimiento. Observa cómo el voltaje pasa a través de las resistencias y carga la batería. Puedes usar voltímetros o osciloscopios virtuales para observar los cambios de voltaje y corriente. ✅ Consejos finales Si no encuentras la resistencia exacta de 2.7Ω, puedes colocar una personalizada. Puedes usar Virtual Terminal si quieres simular señales de comunicación en el conector. El conmutador central (como se muestra en la línea de puntos) puede implementarse con switches DPDT o nodos que conectes manualmente en la simulación.

This project involves designing a complete schematic for a robotic arm controller based on the ESP32-C3 microcontroller, specifically using the ESP32-C3-MINI-1-N4 module. The design features a dual power input system and comprehensive power management, motor control, I/O interfaces, and status indicators—all implemented on a 2-layer PCB. Key Specifications: Microcontroller: • ESP32-C3-MINI-1-N4 module operating at 3.3V. • Integrated USB programming connections with reset and boot mode buttons. Power System: • Dual power inputs with automatic source selection: USB-C port (5V input) and barrel jack (6-12V input). • Power management using LM74610 smart diode controllers for power source OR-ing. • AMS1117-3.3 voltage regulator to deliver a stable 3.3V supply to the microcontroller. • Filter capacitors (10μF electrolytic and 100nF ceramic) at the input and output of the regulators. • Protection features including USBLC6-2SC6 for USB ESD protection and TVS diodes for barrel jack overvoltage protection. Motor Control: • Incorporates an Omron G5LE relay with a PC817 optocoupler and BC547 transistor driver. • Provides dedicated header pins for servo motors with PWM outputs. • Flyback diode protection implemented for relay safety. I/O Connections: • Header pins exposing ESP32-C3 GPIOs: Digital I/O (IO0-IO10, IO18, IO19) and serial communication lines (TXD0, RXD0), plus an enable pin. • Each I/O pin includes appropriate 10kΩ pull-up/pull-down resistors to ensure reliable performance. Status Indicators: • A power status LED with a current-limiting resistor. • A user-controllable LED connected to one of the GPIO pins. PCB Layout Requirements: • 2-layer PCB design with separate ground planes for digital and power sections. • Placement of decoupling capacitors close to power pins to reduce noise. • Adequate trace width for power lines to ensure efficient current flow. • Inclusion of mounting holes at the board corners for secure installation. • All components are properly labeled with correct values for resistors, capacitors, and other passive elements, following standard design practices for noise reduction, stability, and reliability. #RoboticArmController #ESP32C3 #SchematicDesign #PCBDesign #ElectronicsDesign #PowerManagement #MotorControl #EmbeddedSystems #IoT