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TENGO UN LM35, UN LM3511 COMPUERTAS AND, XOR, OR Y NOT, TENGO UN POTENCIOMETRO D...
2y
Entiendo que planeas controlar la temperatura de un cautín usando un LM35 para sensar la temperatura, un potenciómetro para ajustar el valor deseado de temperatura, un decodificador de 7 segmentos para leer el valor de temperatura, un convertidor analógico-digital para procesar la señal del sensor, compuertas lógicas para operaciones adicionales y dos displays para mostrar la información.
Aquí te proporciono una idea general de cómo podrías conectar tus componentes:
- Conecta U1:+VS y U1:GND a una fuente de alimentación adecuada. El LM35 (U1) es alimentado con una tensión de +5V a +30V. Usa V1, que es una fuente de 5V, en esta aplicación.
- Conecta la salida del LM35 (U1:Vout) a la entrada del convertidor analógico a digital (ADC). Este ADC convertirá la lectura de temperatura analógica del LM35 a un formato digital que pueda ser procesado fácilmente.
- Conecta el potenciómetro (VR1) a V1 para permitir el ajuste de la referencia de temperatura. El terminal central del potenciómetro (VR1:WIPER) debe ir conectado a una segunda entrada del ADC.
- Conecta la salida del ADC a tu decodificador de 7 segmentos. Esto te permitirá visualizar la temperatura actual leída por el LM35 y la temperatura de referencia ajustada por el potenciómetro en tus displays.
- Usa tus compuertas lógicas (AND, XOR, OR, NOT) para controlar el flujo de datos entre estas etapas o para implementar una lógica de control de la temperatura. La selección y conexión exacta de estas compuertas dependerá de la lógica de control de temperatura que desees implementar. Por ejemplo, podrías usar una lógica de comparación entre la temperatura de referencia y la temperatura actual para encender o apagar el cautín.
- Android: utiliza un regulador de temperatura o un simple circuito de control basado en transistores para regular la corriente a través del cautín basado en las lecturas de temperatura.
Te recuerdo que deberás revisar las hojas de datos de cada componente para entender mejor cómo conectarlos y cómo funcionan.
Por favor, hágamelo saber si necesita más detalles con alguna etapa específica de este circuito. También, por favor proporcione detalles adicionales como el modelo exacto del ADC, decodificador y compuertas lógicas si necesita más ayuda.
2y
6
Check that none of the unconnected pins require pull-up or pull-down resistors t...
2y
To perform this check, I'll first list out all the unconnected pins we have and then see if any of them require pull-up or pull-down resistors according to the component datasheets.
In your current project, the unconnected pins are as follows:
- For U2 (HX711):
All pins ((VSUP, BASE, AVDD, VFB, AGND, VBG, INA-, INA+, INB-, INB+, PD_SCK, DOUT, XO, XI, RATE, and DVDD)) are unconnected.
- For VR1 (PDB181-K420K-103B):
All pins (CCW, WIPER, CW) are unconnected.
- For U1 (LM35CZ/NOPB):
The Vout pin is unconnected.
Let's look at each component:
-
U2 (HX711): This is a precision 24-bit analog-to-digital converter (ADC) designed for weigh scales and industrial control applications. Typically, the INA+/- and INB+/- pins (analog inputs) can be left floating if not used. The PD_SCK (power down control and serial clock input) and DOUT (serial data output) pins are normally interfaced with a microcontroller and should be pulled high or low depending on the specific implementation. The RATE pin selects the speed mode and should be connected to either AVDD or AGND.
-
VR1 (PDB181-K420K-103B): This component is a potentiometer. None of its pins require pull-up or pull-down resistors to function properly.
-
U1 (LM35CZ/NOPB): This is a precision IC temperature sensor. The Vout pin is the sensor's output, and it doesn't require a pull-up or pull-down resistor, it should be connected to an ADC input on a microcontroller to read the temperature data.
As a conclusion, no unconnected pins require pull-up or pull-down resistors from a functionality standpoint based on their datasheet information. However, don't forget to connect all necessary pins for your application. Please consult the individual datasheets for more specific information about the connections and implementation.
2y
Based on the provided project details, the unconnected pins are as follows:
- U2 (HX711): All pins are unconnected: VSUP, BASE, AVDD, VFB, AGND, VBG, INA-, INA+, INB-, INB+, PD_SCK, DOUT, XO, XI, RATE, DVDD
- VR1 (PDB181-K420K-103B): All pins are unconnected: CCW, WIPER, CW
- U1 (LM35CZ/NOPB): The Vout pin is unconnected
Checking each unconnected pin against the relevant component datasheet:
-
U2 (HX711): None of the pins on the HX711 specifically require pull-up or pull-down resistors for correct operation. However, PD_SCK and DOUT are normally connected to a microcontroller, and whether pull-up or pull-down resistors are needed would depend on the specifications of that microcontroller. Also, unused analog input pins (INA-, INA+, INB-, INB+) are typically connected to AGND when not in use.
-
VR1 (PDB181-K420K-103B): This is a potentiometer, and its pins CCW, WIPER, CW do not require pull-up or pull-down resistors. They should be connected to the appropriate points in your circuit based on the function you require.
-
U1 (LM35CZ/NOPB): Vout does not require a pull-up or pull-down resistor. This is an output pin and should be connected to the input of another device like an analog to digital converter or microcontroller that will process the temperature data.
In conclusion, according to their datasheets and typical application circuits, these unconnected pins do not require pull-up or pull-down resistors. However, be mindful that the exact requirements may depend on your specific circuit design. Always refer to each component's datasheet and the specifications of any connected devices.
2y
Para realizar esta verificación, primero enumeraré todos los pines desconectados que tenemos y luego veré si alguno de ellos requiere resistencias pull-up o pull-down de acuerdo con las hojas de datos de los componentes.
En su proyecto actual, los pines desconectados son los siguientes:
- En U2 (HX711):
Todos los pines ((VSUP, BASE, AVDD, VFB, AGND, VBG, INA-, INA+, INB-, INB+, PD_SCK, DOUT, XO, XI, RATE, DVDD)) están desconectados.
- En VR1 (PDB181-K420K-103B):
Todos los pines (CCW, WIPER, CW) están desconectados.
- Para U1 (LM35CZ/NOPB):
El pin Vout está desconectado.
Ahora, analicemos cada componente:
-
U2 (HX711): Este es un convertidor analógico a digital (ADC) de precisión de 24 bits diseñado para balanzas de peso y aplicaciones de control industrial. Típicamente, los pines INA+/- e INB+/- (entradas analógicas) pueden dejarse flotando si no se utilizan. Los pines PD_SCK (control de apagado y entrada de reloj en serie) y DOUT (salida de datos en serie) normalmente se interfazan con un microcontrolador y deberían mantenerse altos o bajos dependiendo de la implementación específica. El pin RATE selecciona el modo de velocidad y debe conectarse a AVDD o AGND.
-
VR1 (PDB181-K420K-103B): Este componente es un potenciómetro. Ninguno de sus pines requiere resistencias pull-up o pull-down para funcionar correctamente.
-
U1 (LM35CZ/NOPB): Este es un sensor de temperatura de precisión IC. El pin Vout es la salida del sensor y no requiere una resistencia pull-up o pull-down, debe conectarse a una entrada ADC en un microcontrolador para leer los datos de temperatura.
Como conclusión, ninguno de los pines desconectados requiere resistencias pull-up o pull-down desde el punto de vista de la funcionalidad según su información de hoja de datos. Sin embargo, no olvide conectar todos los pines necesarios para su aplicación. Por favor, consulte las hojas de datos individuales para obtener información más específica sobre las conexiones y la implementación.
2y
7
Reviews
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Sensible Aquamarine Battle Mech
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Distributor | Qty 1 |
|---|---|
Digi-Key | $8.48–$10.34 |
LCSC | $14.80 |
Mouser | $8.63 |
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