It deals with the analysis of signals in metals, especially the ferromagnetic behavior when faced with variations, and the production of stress in the metal. What you can do to get quick analysis of metallic materials, by interaction of hardware and software can perform four-point test to measure resistivity, can evaluate cracks, listen to the barkhausen effect, see graphs via serial monitor , and finally the possibility of interacting with ultrasound through sensors, all of this is achieved through interaction with the lcd screen.

https://www.youtube.com/watch?v=ITjycKiGToYИКЗ предназначен для проверки работоспособности якорей, статоров, статора асинхронных электродвигателей.ИКЗ направить на паз якоря или статора. Короткозамкнутый виток в пазу покажет светодиод красного цвета, отсутствие КЗ зеленый светодиод.Настройка чувствительности прибора осуществляется регулировкой сопротивления до появления красного цвета. Прибор определяет область замкнутых витков от 1 до 800. Минимальная длина пакета якоря или статора 20мм.Питание CR 2032- 3В. Собрал, все работает, L1 и L2 мотал на ферритовых гирьках от энергосберегающих ламп, индуктивность и сопротивление не мерил, можно использовать готовые на 680мГн 1000мГн, транзисторы А733, двухцветного светодиода не было, поставил красный и зеленый, сделал чтоб включался кнопкой или перемычкой.IKZ is designed to test the performance of anchors, stators, stator of asynchronous electric motors.IKZ direct to the groove of the anchor or stator. A short-circuited coil in the groove will show a red LED, the absence of a short circuit green LED.The sensitivity of the device is adjusted by adjusting the resistance until a red color appears. The device determines the area of ??closed turns from 1 to 800. The minimum length of the package of the anchor or stator is 20 mm.Power supply CR 2032-3V. I assembled it, everything works, L1 and L2 wound up on ferrite weights from energy-saving lamps, I did not measure inductance and resistance, you can use ready-made ones for 680 mH 1000 mH, A733 transistors, there was no two-color LED, I put red and green, I made it to turn on with a button or jumper.

______________________________________________Purpose:The DSS-31 oscilloscope is a standalone portable device with a graphic display and microcontroller control, and is designed to study electrical signals in the frequency range from zero to several 1MHz.The oscilloscope uses Anti-Aliasing technology, which reduces the discrete distortions of the waveform and brings the signal display closer to the typical analog oscilloscopes. Main technical characteristics: Maximum sampling rate of 2 MHz for single signals, 20 MHz for periodic signals; Maximum bandwidth by-3dB level (typical value) 0 ... 5 MHzInput impedance 1 MΩ, 25 pF;Sensitivity 10mV, 20mV, 50mV, 0.1V, 0.2V, 0.5V, 1V, 2V, 5V, 10V, 20V / div;Sweep 0.1 μs, 0.2 μs, 0.5 μs, 1 μs, 2 μs, 5 μs, 10 μs, 20 μs, 50 μs, 0.1ms, 0.2ms, 0.5ms, 1ms, 2ms, 5ms, 10ms, 20ms, 50ms, 0.1s, 0.2s, 0.5 s, 1s, 2c, 5s, 10s / div;Maximum input voltage 100V (ampl.);8-bit vertical resolution;Sweep start modes: automatic, standby, single, manual;Graphic display monochrome 128x64 pixels;The number of stored waveforms 2 records of 200 samples;Interface language is Russian, English;Off timer 2, 5, 10, 15, 20, 30, 45, 60 min., Off;LCD backlight adjustable, 6 levels;Output for tuning the probe with a divider ≈1.22 kHz, (4.5 ÷ 4.75) V (ampl.);Power supply external (5.0 ± 0.2) V, 100 mA;Display of measured parameters of a signal with 2 or 4 parameters for choice;Indication of the frequency of the test a periodic signal of 0.000 Hz ... 9999 kHz (4 bits);Indication of the launch level of the sweep arrow icon;Waveform Vertical Offset on the screen ± 9.6 div. (10 mV / div); ± 3.2 div. (20mV ... 10 V / div.); ± 2.4 div. (20 V / div.);Horizontal offset waveforms on the screen 0.0 ... 10.0 div .;Automatic function switch sweep and sensitivity limits (separately);Sound accompaniment of pressing the control buttons (adjustable volume);Settings menu;Files:Bill of materialsSchematics diagramFirmware (fuses: LOW: 0x1F, HIGH: 0xC7)_________________________________________

es un proyecto que no lleve a cabo... ya que trata de un desfasador de una se?al sinusoidal, era original mente un modulo que genera 3 se?ales sinusoidales con la propiedad de poder variar su ángulo de fase entre 0 y 90 grados y así tener un circuito que generara tres ondas sinusoidales como la del tendido eléctrico industrial... al que no tenia acceso ... y en mi opinión muy pocos tenemos acceso... y el problema es que las se?ales generadas por un generador de ondas común es de un solo canal... y este circuito toma esta se?al y genera otras dos se?ales con ángulo variable... y así podemos tener tres canales Funcionamiento : la onda B es desfasada respecto a Ala onda C es desfasada respecto a BA es la onda original también tienes algunas aplicaciones para el estudio de desfase de se?ales seno << en archivo BOM están presentes los cálculos utilizados para el uso de cualquier frecuencia >>>También tiene potencial para crear un inversor trifasico >> o bifasico y no se la creatividad es infinita... ;)me gustaría saber si el circuito fue de utilidad ... y que mejoras podría tenernota: el resultado de la resistencia es POT debe aproximarse al potenciometro mas cercano de uso comercial mi dise?o es totalmente thru hole por motivos de que son circuitos fáciles de soldar y que todos tenemos un cautin ala mano :)

USB Component Tester in a keychain is a universal testing device for electronic components with three or lesser pins. It can automatically detect the plugged-in electronic component and measure the desired component parameters without having the user to manually select the component type, unlike the multimeter. It is based on the popular AVR TransistorTester. With a custom application built using electron, USB Component Tester provides the user with all desired component insights with a clean and minimal user interface. It works with all OS platforms like macOS, Windows, and Linux based systems. For MacBook Pro users, the application also supports TouchBar Interface. Usually, many hobbyists, makers, or even engineers have a computer open beside them while working. This USB Component Tester adds a utility to the systems. It replaces other devices such as an ESR Meter, Function Generator, Capacitance Meter, etc. making the workspace free and allowing the user to work more freely.

Обзор самодельного МультиТестера ( Транзисторного тестера) на микроконтроллере Atmega644pa , собран по стандартной схеме ( не по расширенной схеме ) транзисторного тестера.https://www.youtube.com/watch?v=lyVTH1VFlZ8&list=WL&index=82&t=135s

SpecificationMCU: STC8A8K64S4A12 @27MHzDisplay: 0.96" OLED with 128x64 resolutionController: One EC11 EncoderInput: Single ChannelSec/div: 500ms, 200ms, 100ms, 50ms, 20ms, 10ms, 5ms, 2ms, 1ms, 500us, 200us, 100us 100us only available in Auto Trigger ModeVoltage Range: 0-30VSampling Rating: 250kHz @100us/divParameters in Main Interface:Seconds Per Division: "500ms", "200ms", "100ms", "50ms", "20ms", "10ms","5ms", "2ms", "1ms", "500us", "200us", "100us" 100us only available in Auto Trigger Mode.Voltage Range: 0-30V.Trigger Level: Trigger voltage level.Trigger Slope: Trigger on Rising or Falling Edge.Trigger Mode: Auto Mode, Normal Mode, Single Mode.Status in Main Interface:'Run': Sampling Running.'Stop': Sampling Stopped.'Fail': The Trigger Level beyond the waveform in Auto Trigger Mode.'Auto': Auto Voltage Range.Parameters in Settings Interface:PMode(Plot Mode): Show waveform in Vector or Dots.LSB: Sampling Coefficient. Calibrate the sampling voltage by adjusting LSB. 100 times of voltage dividing coefficient. e.g. the resistor for voltage dividing is 10k and 2k, calculate the voltage dividing coefficient (10+2)/2=6. Get the LSB = 6 x 100 = 600.BRT(Brightness): Adjust OLED Brightness.All operations are completed by the EC11 Encoder.Main Interface - Parameter ModeSingle Click Encoder: Run/Stop sampling.Double Click Encoder: Enter Wave Scroll Mode.Long Press Encoder: Enter Settings Interface.Rotate Encoder: Adjust parameters.Rotate Encoder While Pressing: Switch between options.Switch Auto and Manual Range: Rotate Encoder clockwise continuous to enter auto range. Rotate Encoder anticlockwise to enter manual range.Main Interface - Wave Scroll ModeSingle Click Encoder: Run/Stop sampling.Double Click Encoder: Enter Parameter Mode.Long Press Encoder: Enter Settings Interface.Rotate Encoder: Scroll waveform horizontally. (only available when sampling stopped)Rotate Encoder While Pressing: Scroll waveform vertically (only available when sampling stopped)Settings InterfaceSingle Click Encoder: N/ADouble Click Encoder: N/ALong Press Encoder: Return to Main Interface.Rotate Encoder: Adjust parameters.Rotate Encoder While Pressing: Switch between options.FunctionsTrigger Level: For repeating signal, trigger level could make it stable on display. For single-shot signal, trigger level could capture it.Trigger Slope: Trigger slope determines whether the trigger point is on the rising or the falling edge of a signal.Trigger Mode:Auto Mode: Sweep continuous. Single click the encoder to stop or run sampling. If triggered, the waveform will be shown on the display and the trigger position will be put at the center of chart. Otherwise, the waveform will scroll irregular, and 'Fail' will be shown on the display.Normal Mode: When complete pre-sampling, you can input signal. If triggered, waveform shown on the display and waiting for new trigger. If no new trigger, the waveform will be kept.Single Mode: When complete pre-sampling, you can input signal. If triggered, waveform shown on display and stop sampling. User need to single click Encoder to start next sampling.For Normal Mode and Single Mode, be sure the trigger level has been adjusted correctly, otherwise no waveform will be shown on the display.Indicator: Generally, the indicator on means the sampling is running. The more important use is in Single and Normal Trigger Mode, before get into the trigger stage, pre-sampling is required. The indicator will not on during pre-sampling stage. We should not input signal until the indicator comes on. The longer time scale selected, the longer waiting time of pre-sampling.Save Settings: When exit settings interface, all parameters in settings and main interface will be saved in EEPROM.

Automation systems are those equipment, machines or any type of thing that works without the presence of the human being, by making decisions depending on certain circumstances that are imposed by the designer.Thanks to automation, the human being has ceased to be an operator and has become a supervisor, acting on the system only when the latter is not able to make a decision or require his presence; Programmable logic controllers (PLCs) or microcontrollers are used to create an automatic system. The second option was developed a relay module, which is compatible with any type of platform.The relay module consists of 8 channels that are enabled by a DC or AC voltage (depending on the voltage required by the coil of each of the relays), its design was developed with few components so that its value was not high; Although there are many modules in the market, this was done with the purpose of being installed in a control panel using the same connectors that use relays and power contactors, guaranteeing security in the connections that other types of modules do not have.Within the same printed circuit, there is a protection in the coil of each relay with the purpose of increasing its useful life, its use is easy, it is enough to feed the card with the DC voltage of ignition of the coils and from the microcontroller or PLC, connect GND and each of the pins to use with each relay, on the inside of the card there are four holes where you can perform the installation with the control board.Andy RubianoTMElectronic engineer.Twitter, Facebook and Instagram accounts: RubianoAndy.

### DESCRIPTION1 of 16 MUX for oscilloscope, with a 10X probe on the PCB. The Layout can support a TI MUX507, I am unisg the TI MUX506When it was complete, I put it in to a Hammond 1455N1201RD. I had to cut it down a little.https://www.hammfg.com/files/parts/pdf/1455N1201.pdfThe Gerbers attached have been corrected such that the 4 Opto isolaors do not need the jumpers shown in the picture. The LM7918 will need pins 1 and 2 swaped, do not run the switcher with out a negitive regulator or a 4.7K load. USB powered or Isolated power supply. If you don't need isolation use the Jumpers as shown and you can eliminate the Optoisolators too.The PCB has a +/- switching power supply, there are 3 Vias for TO92 LM78__ and LM79__ I used LM7818 and ML7918 for my board so far I have used it for 0 to 14Vdc.I have the BNC to a Tektronix TDS1012. I found that I would need to adjust the CAP if I change cables. ### TECHNICAL DETAILS / COMPONENTSControled by FTDI FT240XS in BIT Mode. Using FTDI D2XX_Module.basFT_Result = Set_USB_Device_BitMode(255, &H4) ' set All pins as output### LEARN / TOPIC / BUILD INSTRUCTIONSUsing FTDI D2XX_Module.bas.Data = Chr(Input)FT_IO_Status = FT_Write(FT_HANDLE, Data, Len(Data), Write_Result)For the Varible, Input = 16 is the Enebale D4 then Input 0 will be active.The incramenting 17 is Enabled, and 1...On the PCB are LEDs A0, A1, A2, A3 These should help with learning to use the board.

Basado en un circuito oscilador por transistores... necesita de una fuenteDepoder esta tiene que ser de entre 6v a 9v DC Cuenta con un jumper para encendido y apagado Espero decoren su casas con terror y mucho estiloDimensionesde la luna 5CM X 5,5 CM No se olviden de darle un like si les gusta Y de ver mis otros proyectos Gracias

Modul ini dapat digunakan secara universalUnboxing Paket PCB dari PCBWay

Try to build my own oscilloscope

Project: https://www.fischl.de/usbtin/

This is mini oscilloscope using oled displayhttps://fareedish.blogspot.com/2020/09/membuat-arduino-oscilloscope.html