Reviews Analog Board

ONKYO A-9050 S Integrated Amplifier 100W + 100W 8Ω Silver Japan model

60 W/Ch. (4 ohms, 20hz-20khz, 0.08% THD, 2 channels Driven, FTC) from high current power supply transformer and two High-grade customized capacitors.
Discrete Spectra module produces high instantaneous voltage for immersive sound Staging, improved instrument separation, and lively transient response.
Akm (AK4452) 768 kHz/32-bit digital-to-analog converter brings CD's and digital sources to life. For vinyl, a dedicated mm/MC circuit board and high....
DIDRC Filter Prevents Ultra-high-frequency Distortion Affecting Audible Sound.
4 gold-plated analog RCA Audio inputs plus mm/MC phono input, 2 optical digital inputs, 2 coaxial digital inputs, 2 pairs of gold-plated speaker posts....

100 % SATISFACTION GUARANTED ★ Excellent quality and an empty canvas for electrical enthusiasts! An easy soldering.
0.1" hole spacing for DIP integrated circuits and headers..
THIS IS NOT YOUR NORMAL PERF BOARD! ★ This board is much higher quality with plated-through-holes and annular rings that will not lift off the PCB under normal soldering conditions.
MUTI-PURPOSE ★ General purpose prototyping circuit board for analog and digital use.
Double sided board with plated-thru holes allows components to be easily soldered to either side of the board.
THE FLEXIBILITY OF HAVINg CHOICES ★ Great assortment with variety of size and perfect for quickly prototyping stackable circuits.
PACKAGE COMPONENT ★ 40 Piece of double sided PCB prototype board in 5 different size (2x8 and 3x7 each 10 Pcs.
7x9 cm each 4 Pcs) with mounting holes or slots on each board corner.

Pin 5V power supply, on-board power indicator.
The module can measure the positive and negative 20 amps, corresponding to the analog output 100mV / A.
There is no the detection current through, the output voltage is VCC / 2.

The KEYESTUDIO Plus board can work like the Arduino Board but it is more powerful and has more pins.
The USB to Serial chip of this board is stable and compatible CP2102.
extend serial communication and I2C interface, 6 PWM and 6 analog ports.
special DC-DC design provides up to 5V 1.5A, can drive high-current devices like servo and motor.
The yellow text on black board makes identifying pinsets a breeze. FCC and CE is available.
How to use: Search for "keyestudio wiki KS0486" in Google Chrome to get the wiki online tutorial for this product. Technical supports are available at any time!.

Dual core ESP-32 development board, 2.4GHz Dual Mode Development Board..
Ultra-Low power consumption,small volume, easy to embed to other products, works perfectly compatible with Arduino IDE..
ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA..
ESP32 is a safe, reliable, and scalable to a variety of applications,the user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values exceed the threshold..

Getting the voltage varies on what you’re using. The PH for this sensor is not at 0v for a PH7 it’s around 2.51v from the multi-meter and PH4 at 3.03. If you calculate the step, 2.51-3.03 =-0.52. The difference between ph4.01 and PH7 is 2.99..
If you’re using a Particle product like the Photon or Argon, be aware of a bug. It’s a hardware issue with the analog ports fluctuating a ghost voltage. This fluctuation is enough at these low voltages reading to make your ph sway by .7 or more. To fix this, you’ll need to add a 0.1uF cap between the analog port your using and ground..
This PH electrode probe must be calibrated with standard buffer solution before each use, and the electrode probe cannot be tested continuously for a long time, which will shorten its life. There are two trimmers on the circuit board. One of them is for offset adjustment (closest to BNC connector) accomplished by removing the Ph probe and shorting the BNC connector with a wire. The other trimmer is an upper limit threshold for the digital output pin..

This product is a speaker-dependent voice recognition module. It supports up to 80 voice commands in all..
This board has 2 controlling ways: Serial Port (full function), General Input Pins (part of function). General Output Pins on the board could generate several kinds of waves while corresponding voice command was recognized..
Digital Interface: 5V TTL level for UART interface and GPIO.
Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface.

This is D1 mini , it is a mini NodeMcu Lua WiFi board based on ESP-8266EX..
D1 Mini NodeMcu Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino, 100% Compatible with WeMos D1 Mini.
11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0).
1 analog input(3.2V max input). Micro USB connection.
WIFI development board,4M bytes.5V 1A switching power supply (switching power supply）onboard..
Our mini development board compatible with Arduino WeMos and can be programmed in the for Arduino IDE..

This is D1 mini, it is a mini NodeMcu Lua WiFi board based on ESP-8266EX..
D1 Mini NodeMcu Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino, Compatible with WeMos D1 Mini..
11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0).
1 analog input(3.2V max input). Micro USB....
WIFI development board,4M bytes.5V 1A switching power supply (switching power supply）onboard..
Our D1 mini development board compatible with Arduino WeMos and can be programmed in the compatible for Arduino IDE..