Here's some circuits to try out - some complete projects, some add-ons - basically, some ideas or starting points. I've only been dealing with electronics for a few years and I only had a very little formal training.
These simple circuits are meant to be quicky'n'dirty and make use of some of the wide variety of chips available in the 4000 CMOS logic series. The 4015 contains two independent 4-stage shift registers and require clock and data signals (along with a reset input which may be implemented or not depending on requirements). The 40106 is a great chip to play with - you can make up to 6 simple oscillators from it, but I've chosen to implement simple Syncronization, so only have four Oscs. The 4077 is a quad XNOR gate which gives an effect like ring-modulation (you could also use a 4070 XOR for similar effects).
I began this 4052 based design as a core for micro-controlled sequencing, but my learning of the micros hit another wall so I thought I'd make a standard modular one to run off my clock divisions. Should be pretty straight forward - the 4052 is a dual 4 stage multiplexer -- use the two Bit inputs to select which input passes through to the output.
New electronic pulse counter for gate opener,lighting switch RTU5016, View GSM gate opener, KINGPIGEON Product Details from Shenzhen King Pigeon Communication Co., Ltd. The Electronic Switch Pulse Input Adapter connects sensors with pulse outputs to data loggers with smart-sensor inputs. The largest, most durable airline-legal carry-on available, the new 1510 Pelican case provides safe and convenient transport of your HOBO data logging equipment.
The Electronic Switch Pulse Input Adapter connects sensors with pulse outputs to data loggers with smart-sensor inputs.
The Veris AC Kilowatt Transducer incorporates one split-core AC current sensor and two voltage leads and outputs a signal proportional to kilowatts of power (consumption).


The Veris AC Kilowatt Transducer incorporates three split-core AC current sensors and three voltage leads and outputs a signal proportional to kilowatts of power (demand). The WattNode provides accurate measurement at low cost to meet your needs for sub-metering, net-metering, energy management, and performance contracting applications. The WattNode sensor provides accurate kWh measurement at a low cost to meet your needs for sub-metering, net-metering, energy management, and performance contracting applications. Please don't go selling anything based on these designs without asking first - I'm reasonable, hopefully you are too! The schematics generally just show the simplest possible setup for the chip (check out the datasheets for more info). CMOS chips have wide power options, so a simple 5v supply would be perfectly adequate and may be more easily intergrated with other modular devices (make sure, though, not to pump negative voltages into the inputs or voltages over the chip's supply voltage). I wired the data input with a single-pole-double-throw-centre-off switch so that you can input a logic HI, logic LO or external data flow - in the Up position, the input is tied HI, in the mid position the input is pulled low by the pull-down resistor and in the low position the external input is connected.
So there's four pots (range 0 to +5v) to be selected and the 2nd half of the 4052 is used to provide a step LED indicator. If you require further details regarding the transaction data, please contact the supplier directly.
This Smart Sensor is compatible with electronic switch closures such as FET or open-collector outputs, or CMOS-level logic signals with a maximum input frequency of 120 Hz (120 pulses per second). This watertight, crush-proof, and dust-proof case features a sturdy but lightweight design that includes a Pick N Pluck™ foam interior, 17” retracting extension handle, strong polyurethane wheels, stainless steel hardware, padlock protectors, and a lifetime guarantee of excellence. Accepting an input primary voltage of 208 to 480 Volts AC rms, this transducer requires a Pulse Input Adapter. Accepting an input primary voltage of 480 Volts AC rms, this transducer requires a Pulse Input Adapter.


This WattNode Delta-connection kWh Transducer works with Magnelab AC Current Transformers and a Pulse Input Adapter to provide True RMS kilowatt hours of energy used, even for loads with non-sinusoidal waveforms. This WattNode Delta or Wye-connection kWh Transducer works with Magnelab AC Current Transformers and a Pulse Input Adapter to provide True RMS kilowatt hours of energy used, even for loads with non-sinusoidal waveforms. This WattNode Wye-connection kWh Transducer works with Magnelab AC Current Transformers and a Pulse Input Adapter to provide True RMS kilowatt hours of energy used, even for loads with non-sinusoidal waveforms. This WattNode kWh Transducer works with Magnelab AC Current Transformers and a Pulse Input Adapter, or a HOBO® Data Node pulse input port to provide True RMS kilowatt hours of energy used, even for loads with non-sinusoidal waveforms. Its an open ended system for experimentation - either at audio rates (for synthesis) or low freqs (for rhythmic clocking).
Each schematic shows the power pins for the chip, plus standard stabilizing (eg 100u electro) and decoupling caps (eg 100n ceramic). I don't give PCBs for these designs because of their similicity - I've generally just whacked them together on a little bit of stripboard. At audio rates this sounds like octave divisions, but the rhythmic effect is quite different as the spacing of the divisions is quite interesting (I should do a demo!).
Because these sensors tie directly into the line, they should be used only by qualified personnel. I have done two versions - one with control inputs to the Rate Controls (using SPDT Centre-off switches, similar to the use with the 4015) and one where you just get the switches controlling two 4089s.




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