Incubate the Triceratops circuit

The circuit utilizes multiple integrated circuits to form an automatic lighting device that is activated by door and window sensors. It includes CD4093 digital integrated circuits, a relay, and a power supply circuit. The system typically remains closed when a...

Electronic thermostat circuit

The thermostat electric circuit operates as depicted in the figure. It has three settings: off, low power (Lo), and high power (Peru HL). When the DIP switch SA is set to the Lo position, 220V AC is directed through diodes...

Help with a schematic please

A project is underway to construct the CountryHick DI as illustrated on DIYFactory, incorporating a few minor modifications. The final design aims to be a 1U unit with four inputs. The CountryHick DI (Direct Injection) box is a crucial tool in...

Temperature Controlled Relays 4001/4011

The first circuit energizes the relay when the temperature rises above the preset level. The second circuit energizes the relay when the temperature falls below the preset level. The two circuits are practically identical. The only difference between them is...

Fuzzy Urn

Accurate control of water temperature prompted the exploration of practical applications of theoretical knowledge. The approach involves using a variable AC chopper to adjust power levels and Fuzzy Logic for control management. The variable AC chopper, akin to a light...

Automatic plant waterer

The unit consists of a sensor, timer, and electric water pump. The sensor is embedded in the soil, and when dry, the electronics operate the water pump for a preset time. The circuit is composed of a level-sensitive Schmitt trigger,...

Temperature controller

Temperature control is accomplished using the REF-02 +5 V Reference/Thermometer in conjunction with the CMP-02 Precision Low Input Current Comparator. The CMP-02 activates a heating element driver (Q1) whenever the current temperature falls below a predetermined setpoint, which is established...

5 Minute Signal

For the past year and a half, a group based in Ann Arbor, Michigan, named GO-Tech has been formed, uniting individuals interested in creating projects using technology, such as hardware, software, metal, and wood. This initiative is referred to as...

A Thermostat With Adjustable Hysteresis

A thermostat doesn't try to maintain a constant temperature. In order to do so, it would have to keep switching on and off every few seconds. Instead, it keeps the temperature within a specific range. When the preset temperature has...