Thermometer Circuits
- Page 5-
This circuit is based around the PIC16LF1937 microcontroller. This chip is actually a small computer contained in a single chip, including RAM memory, EEPROM, I/O ports, CPU and so on. When you buy this chip, it comes empty with no program on it. You have to.... -
For the receiver circuit and display modulewill receive the high frequency AC power cordand decode out to be the actual temperature figures with digital IC No. CD4553 Three-digit BCD Counter IC) and IC-CD4511 (BCD-to-7-Segment Latch / Decoder / Driver IC)..... -
Digital Thermometer 0-100. 0 °C is a digital thermometer that operates in mode temperature measurement in Celsius ( ° C). Digital Thermometer 0-100. 0 ° C in this article uses data processor in the form of a microcontroller AT89C4051. Temperature sensors.... -
I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with... -
My original idea for this project was simply to try and interface the WINTEK WD-C2401P lcd panel to the pic (see my previous post). I figured it would be fun to add a couple of ADC readings to display something useful on the lcd. PORTB on the PIC is used as.... -
I havebeen researching a project which will help me with my understanding of electronics, networking, and programming. I decided to build an online thermometer which could be used in applications that need temperature monitoring. I currently work in a lab.... -
This diy digital thermometer circuit can measure temperatures up to 150 °C with an accuracy of ±1 °C. The temperature is read on a 1V full scale-deflection (FSD) moving-coil voltmeter or digital voltmeter. Operational amplifier IC 741 (IC3) provides a.... -
Why measure the temperature of the coffee? Well, coffee taste depends on two things. First, how strong the coffee is and second, how hot it is. The second... -
This diy digital thermometer circuit can measure temperatures up to 150?C with an accuracy of ?1?C. The temperature is read on a 1V full scale-deflectio... -
This circuit is intended for precision centigrade temperature measurement, with a transmitter section converting to frequency the sensor`s output voltage proportional to the measured temperature. The output frequency bursts are conveyed into the mains supply.... -
PIC16F84A Digital Thermometer Circuit The digital thermometer circuit is built, almost all by using the temperature sensor of some form of discrete components,... -
This digital thermometer circuit diagram uses a common 1N4148 diode as the temperature sensor. The temperature coefficient of the diode, -2 mV / 0C is expl... -
If you have a digital voltmeter, or any voltmeter with millivolt resolution and high input impedance, then you can use this temperature-to-voltage adapter... -
Using LM134 and LM10 integrated circuits, we can build a thermometer which has -55 to 150?C sensing range.? The ideal meter for this circuit is a 0-200uA... -
In this article we make digital thermometer on the Arduino Uno. In this Digital Thermometer temperature sensor used is LM35DZ. In other applications you can replace with LM35 temperature sensor such as DS18B20 and others. In principle, the sensor will detect.... -
This circuit is intended for precision centigrade temperature measurement, with a transmitter section converting to frequency the sensor`s output voltage, which is proportional to the measured temperature. The output frequency bursts are conveyed into the.... -
This is a very simple digital thermometer with an Atmel AVR microprocessor, measuring the temperature in range of 2 to 99 °C (degree Celsius) with a resolution of 1 °C. The circuit is controlled by a microprocessor IO1 - Atmel AVR ATmega8, ATmega8L or.... -
Electronic thermometer has countless applications. Not everywhere can we use the standard mercury thermometer, for example, due to its size, frailty or the need to measure from the distance. The advantage of electronic thermometers are also small size and.... -
Now we bring you two versions of a homemade digital thermometer with ICL7106 that I recently built. One version uses a LED display, the second version LCD display. In both versions, is used silicon transistor as a temperature sensor. The temperature is.... -
We are planning to use a Programmable Logic Device to control our seven-segment displays. This will be accomplished by using the 8 outputs from the Analog to Digital converter as the inputs to the PLD, and by having the PLD generate 14 outputs to drive the 7.... -
This circuit is a simple dual simplex to half-duplex driver for 1-wire devices, although it does not work with all of them, because some draw too much current. It was designed and tested for DS18B20+ 1-wire digital thermometer. The parasite power only.... -
This one is using a 16F876 PIC, MCP1047A temperature sensor ( X2 ), MCP1541 voltage reference and MCP6022A opamp. The display is a 2 row HD74780 based 2X16 char, SII L1652BIJ2 but any other display based on HD74780 can be used. Meantime the thermometer is.... -
This standalone digital thermometer controls the temperature of a device according to its requirement. It also displays the temperature on four 7-segment displays in the range of 55 to +125 °C. At the heart of the circuit is the microcontroller AT89S52,.... -
As shown in the schematic, temperature sensor of our electronic thermometer is LM35DZ. There are some kinds of LM35 IC, since it is cheap and easy to find we used LM35DZ in our project. It measures from 0?C to 100?C with a very linear output graph.For one.... -
Clinical thermometer is only used by doctor because it is difficult to read. Here is a circuit of electronics thermometer used to measure vast range of temperature from -200C to 1250C. This single circuit electronics thermometer can be used to measure.... -
This is a circuit of a microcontroller AT89S52 Thermometer and 12-bit ADC LTC1298, programs written in the language c program with digital filtering and interface the LED display. The reading provides 0. 1C sensitivity. The hardware block and circuit diagram.... -
We will use them to show current room temperature using a LM35 temperature sensor. Please note that this schematic is slightly different from our previous schematic on multiplexed seven segment display. The display select i/o pins were RA0, RA1, RA2, RA3 on.... -
A digitalmultimeter is a very useful instrument that combines several measurement functions in one unit. A typical multimeter includes features of a variable-range ohmmeter, voltmeter, and ammeter. Some of them also include capabilities of testing diodes and.... -
This digital thermometer circuit diagram uses a common 1N4148 diode as the temperature sensor. The temperature coefficient of the diode, -2 mV / 0C is exploited for this application to create an accurate electronic thermometer. To display the measured....
New Circuits
-
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower..... -
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to....
Popular Circuits
Feedback - This is where part of the output signal is fedback to the input BUT 180o out-of-phase...
Normally analogue-to-digital con-verter (ADC) needs interfacing through a microprocessor to...
This tachometer can be set up for any number of cylinders by linking the appropriate timing...
In this circuit. a negative output voltage de-de converter generates a -5 V output at pin A. In...
It is parallel fed because the DC plate current does not flow through the inductor. R3 may be...
Nearly always when a remote control doesn`t work, the underlying problem is elementary: the unit...
Many low pass filter circuits for subwoofer are given here and this can be simply another one....
The ADC12038 families are 12-bit plus sign sampling ADC converters with serial I/O. These devices...
D1, D2, C1, and C2 double the AC line in, charging C3 through R1 to approximately 320 volts. R1...
Electric shavers thorn circuit shown in Figure 1-17. Shown by the capacitance C buck, buck...