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Quiero un circuito para un probador de inyectores utilizando un pic16f877a con u...

rubenmam

@copilot Quiero un circuito para un probador de inyectores utilizando un pic16f877a con una pantalla lcd y un teclado telefónico 4x4 para su modificación.

copilot

¡Entendido! Hagamos un desglose de lo que necesitamos para un proyecto de este tipo:

Microcontrolador: Utilizaremos el PIC16F877A-I/P para el control del sistema.
Pantalla LCD: Usaremos un Hitachi LCD para la visualización.
Teclado Matricial 4x4: Para la entrada de usuario.
Otros Componentes: Resistores, condensadores, fuente de alimentación, y transistores para el control de los inyectores.

Conexiones Conexiones del PIC16F877A

Alimentación
- Conectar $U1:11\ (VDD_1)$ y $U1:32\ (VDD_2)$ a 5V.
- Conectar $U1:12\ (VSS_1)$ y $U1:31\ (VSS_2)$ a GND.
Cristal Oscilador
- Conectar un cristal de 20MHz entre $U1:13\ (OSC1/CLKI)$ y $U1:14\ (OSC2/CLKO)$ .
- Conectar capacitores de 22pF entre los pines del cristal y GND.

Conexiones del LCD Hitachi

Alimentación
- Conectar $U2:1\ (VSS)$ a GND.
- Conectar $U2:2\ (VDD)$ a 5V.
Control y Datos
- Conectar $U2:4\ (RS)$ a $U1:RA0/AN0\ (Pin\ 2)$ .
- Conectar $U2:5\ (R/W)$ a $U1:RA1/AN1\ (Pin\ 3)$ .
- Conectar $U2:6\ (E)$ a $U1:RA2/AN2/VREF-/CVREF\ (Pin\ 4)$ .
- Conectar $U2:11\ (DB4)$ a $U1:RB0/INT\ (Pin\ 33)$ .
- Conectar $U2:12\ (DB5)$ a $U1:RB1\ (Pin\ 34)$ .
- Conectar $U2:13\ (DB6)$ a $U1:RB2\ (Pin\ 35)$ .
- Conectar $U2:14\ (DB7)$ a $U1:RB3/PGM\ (Pin\ 36)$ .

Conexiones del Teclado Matricial 4x4

Filas:
- Conectar Fila 1 a $U1:RD0/PSP0\ (Pin\ 19)$ .
- Conectar Fila 2 a $U1:RD1/PSP1\ (Pin\ 20)$ .
- Conectar Fila 3 a $U1:RD2/PSP2\ (Pin\ 21)$ .
- Conectar Fila 4 a $U1:RD3/PSP3\ (Pin\ 22)$ .
Columnas:
- Conectar Columna 1 a $U1:RD4/PSP4\ (Pin\ 27)$ .
- Conectar Columna 2 a $U1:RD5/PSP5\ (Pin\ 28)$ .
- Conectar Columna 3 a $U1:RD6/PSP6\ (Pin\ 29)$ .
- Conectar Columna 4 a $U1:RD7/PSP7\ (Pin\ 30)$ .

Conexiones de los Inyectores

Usaremos transistores (ej. 2N2222) para controlar los inyectores a través del PIC16F877A:

Base – Resistor de 1kΩ, luego al pin del microcontrolador.
Colector – Conectar al pin negativo del inyector.
Emisor – Conectar a GND.
Conectar el pin positivo del inyector a 12V.

Por ejemplo, para un inyector:

Conectar un transistor $Q1$ (uso de 2N2222) con la base a $U1:RC0/T1OSO/T1CKI\ (Pin\ 15)$ mediante un resistor de 1kΩ.

Resumen de Conexiones PIC16F877A

Alimentación:
- Conectar $U1:11\ (VDD_1)$ y $U1:32\ (VDD_2)$ a 5V.
- Conectar $U1:12\ (VSS_1)$ y $U1:31\ (VSS_2)$ a GND.
Cristal Oscilador:
- Conectar un cristal de 20MHz entre $U1:13\ (OSC1/CLKI)$ y $U1:14\ (OSC2/CLKO)$ .
- Conectar capacitores de 22pF entre los pines del cristal y GND.

LCD Hitachi

Alimentación:
- Conectar $U2:1\ (VSS)$ a GND.
- Conectar $U2:2\ (VDD)$ a 5V.
Control y Datos:
- Conectar $U2:4\ (RS)$ a $U1:2\ (RA0/AN0)$ .
- Conectar $U2:5\ (R/W)$ a $U1:3\ (RA1/AN1)$ .
- Conectar $U2:6\ (E)$ a $U1:4\ (RA2/AN2/VREF-/CVREF)$ .
- Conectar $U2:11\ (DB4)$ a $U1:33\ (RB0/INT)$ .
- Conectar $U2:12\ (DB5)$ a $U1:34\ (RB1)$ .
- Conectar $U2:13\ (DB6)$ a $U1:35\ (RB2)$ .
- Conectar $U2:14\ (DB7)$ a $U1:36\ (RB3/PGM)$ .

Teclado 4x4

Filas
- Conectar Fila 1 a $U1:19\ (RD0/PSP0)$ .
- Conectar Fila 2 a $U1:20\ (RD1/PSP1)$ .
- Conectar Fila 3 a $U1:21\ (RD2/PSP2)$ .
- Conectar Fila 4 a $U1:22\ (RD3/PSP3)$ .
Columnas
- Conectar Columna 1 a $U1:27\ (RD4/PSP4)$ .
- Conectar Columna 2 a $U1:28\ (RD5/PSP5)$ .
- Conectar Columna 3 a $U1:29\ (RD6/PSP6)$ .
- Conectar Columna 4 a $U1:30\ (RD7/PSP7)$ .

Control de Inyectores

Conectar base de transistor ( $Q1$ ) a $U1:15\ (RC0/T1OSO/T1CKI)$ mediante un resistor de 1kΩ.
Conectar colector de ( $Q1$ ) al pin negativo del inyector.
Conectar emisor de ( $Q1$ ) a GND.
Conectar el pin positivo del inyector a 12V.

Este esquema te proporciona un punto de partida sólido para diseñar tu probador de inyectores con pantalla LCD y teclado 4x4 utilizando el PIC16F877A en Flux. ¿Te gustaría seguir adelante con alguna parte específica del proyecto o necesitas más detalles?

SW1

Reviews

Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
jharwinbarrozo
16.1k
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Resistor
A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
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1.5M
Ground
A common return path for electric current. Commonly known as ground.
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20.5M
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
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Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
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RMCF0805JT47K0
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875105359001
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CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
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1070TR
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700.5k

Project Name

Little Apricot Proton Packs

Description

Welcome to your new project. Imagine what you can build here.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor	Qty 1
Arrow	$6.61–$7.48
Digi-Key	$8.05–$9.29
LCSC	$7.91
Mouser	$8.57
Verical	$7.48–$14.68

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rubenmam / Little Apricot Proton Packs

Schematic