Reviews Oscillator Tool

DAOKI 5Pcs RTC I2C Module Arduino I2C RTC DS1307 AT24C32 Real Time Clock Module 24C32 Memory High Precision for AVR ARM PIC SMD Compatible with Arduino with 60 Pin

Clock chip: high-precision clock chip DS3231SN.
is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal..
The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping..
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line..
The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package..

Retro style - A classic minimalistic design inspired by split-flap display seen in old train stations. This clock will catch the eyes of any visitor to your home or office. A great conversation piece!.
Premium gift - This clock features stainless steel frame and ABS cards to guarantee its durability. Keeps time accurately thanks to the quartz oscillator. It's a great gift to your friends and beloved ones for Birthday, Chirstmas or any other occasion!.
Great decor - This timepiece is the best home and office decoration you will ever find. The neat style makes the clock suitable for any room. Huge numbers on the cards makes it easy to read from distance..
Specification - Adjust through a single knob next to the minute display. It is advised to set the time one minute ahead to compensate the clock's mechanism. 12-hour AM/PM display. 8 inches in length, 3 inches in width and 6.5 inches in height. Featuring stainless steel frame, ABS cards and quartz oscillator. Powered by 1 x D battery (Not included)..
Warranty - We stand behind our products! All items sold by us come with a one year warranty..

...Service]: ICs are made of high-quality materials, they are very durable, can serve you for a long time. And the safety and reliability are high, so you don't have to worry even if you work for a long time..
♛ [Widely Application]: 74LSxxx and 74HCxxx Series ICs can be used as Bistability, register, shift register, oscillator, oscillator, divider counter, etc..

The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, builtin PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red. The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps )..
Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by ....

Integrated circuit amplifier including amplifier with frequency response adjusted for best voice articulation.
AC or DC operation with selectable timing.