4Pcs MAX7219 8 Digit 7 Segment LED Tube Display Control Module for MCU/51/AVR/STM32
MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits.This module is compatible with 5V and 3.3V microcontrollers, and you you can use it.
Material: PCB+Electronic components, LED color: Red.
Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays. PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen..
Wiring instructions (take the provided program as an example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01.
Digital tube is 0.36 inch 4-bit integrated cathode digital tube.
Note: VCC and GND should not be connected reversed, so as not to burn the chip.
51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines..
A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. MAX7219 also allows the user to select each data encoding or no coding..
KWANWA Wall Clock, Digital Clock, 8\ Extra Large Display, 3\ Big LED Number, Battery Operated, Adjustable Brightness, Clock for Bedroom, for Desk, Wall Mounted
8" Large Screen with 3" LED Digit Display - The 8" Extra Large Screen Display with clear LED digital. LED numbers are 3" big high and they are showing hour and minute. As large wall clock, even the elderly and the dementia patients can easily recognize the time. 2 PCS Alkaline D Cell Batteries will support the alarm clock going to work for more than 12 months..
Digital Desk Clock & Wall Clock - The digital clock with unfold the brackets on the back and you can put it on desk/ table/ bedside/ shelf/ nightstand as a desk clock. Hang on the wall by the hang holes easily wall-mounting for wall clock. A modern decoration digital wall clock for bedroom, kitchen, living room or office..
Adjustable Brightness & Auto Night Mode - The digital alarm clock provides 3-level brightness, adjust by manual or auto to a comfortable brightness. The LED light will automatically dim during 8pm~6am your sleep time to protect your eyes at night and save energy. No blinding lights or any annoying sounds disturb your sleep, create an peaceful environment for sleep. (NOTE: Can't be used in strong light, otherwise the digital display will be blurred and even unable to read).
High Accuracy & Daily Alarm - We understand that you are always need a clock with accurate time display an....
YESMAE Cordless Vacuum Cleaner, 400W 33Kpa Powerful Stick Vacuum with 55min Runtime Detachable Battery, Touch Display and 1L Large Dust Cup, Vacuum Cleaners for Hardwood Floor Carpet Car Pet
【400W Brushless Digital Motor】： brushless motor can reach 90,000rpm, generating 33Kpastrong suction. Equiped with powerful motorized floor head with LED headlights, it is great for cleaning up crumbs on the kitchen floor, dirt under the bed, couch, furnitures and at dark places..
【33KPa Powerful Suction 】: YESMAE HC-22Z wireless vacuum cleaner can be switched between three modes: economic mode (15KPa suction for 55 mins), standard mode (20KPa for 25 mins), and strong mode (33KPa for 15 mins). Removable battery makes it easy to rechargeable separately.
【Touch Screen & LED Display】: Large touch screen LED control panel makes it effortless to adjust the vacuum power and know the status your vacuum cleaner. This design is more convenient and trouble-free compared with traditional button operation. The control panel shows the battery level, suction performance, brush stuck alert and suction blockage alert.
【8 Combinations & Cordless Lightweight】: YESMAE HC-22Z vacuum cleaner comes with retractable metal tube, long crevice, 2-in-1 brush, motorized brush and mini motorized brush, which can be assembled into 8 Combinations. It can be assembled arbitrarily for easy cleaning of stairs, car interior, curtains and other hard-to-reach places. Light....
KWANWA Alarm Clock, 8\ Large Screen Display, Digital Clock, Battery Operated, Auto Dimmer Mode,Wall Clock&Desk Clock for Bedroom, Office, Living Room, Elderly
8" Large Screen with 3" LED Digit Display - The 8" Extra Large Screen Display with clear LED digital. LED numbers are 3" big high and they are showing hour and minute. As large wall clock, even the elderly and the dementia patients can easily recognize the time. 2 PCS Alkaline D Cell Batteries will support the alarm clock going to work for more than 12 months..
Digital Desk Clock & Wall Clock - The digital clock with unfold the brackets on the back and you can put it on desk/ table/ bedside/ shelf/ nightstand as a desk clock. Hang on the wall by the hang holes easily wall-mounting for wall clock. A modern decoration digital wall clock for bedroom, kitchen, living room or office..
Adjustable Brightness & Auto Night Mode - The digital alarm clock provides 3-level brightness, adjust by manual or auto to a comfortable brightness. The LED light will automatically dim during 8pm~6am your sleep time to protect your eyes at night and save energy. No blinding lights or any annoying sounds disturb your sleep, create an peaceful environment for sleep. (NOTE: Can't be used in strong light, otherwise the digital display will be blurred and even unable to read).
High Accuracy & Daily Alarm - We understand that you are always need a clock with accurate time display an....
KZYEE 7 inch Digital Microscope IPS Screen, 1080P Coin Magnifier with 8 LED Lights, 1200x Soldering Microscope Portable for Adult Kids, Compatible with MAC and PC,Extended Shaft, IR Remote, Specimens
IMPROVED MICROSCOPE: Compared to the ordinary 4.3-inch digital microscope, the new improved KZ700 digital microscope is equipped with a 7-inch rotating FHD screen ( IPS ) that not only accurately reproduces the colors of images and videos, but also provides a wider dynamic range and more photo detail for an unprecedented miniature viewing experience and the rotatable screen makes it easier to observe from different angles..
EXTENDED HEIGHT: After the update, an additional extension tube has been added, the maximum distance between the lens and the base has been increased to 10 cm. The stage level magnification ring and objective focusing design allow you to focus smoothly. KZ700 digital magnifier can display coins in their entirety. Easy to get whole coins on the spot likes: dimes, cents, nickels, quarters, dollars, and even large silver dollars..
50x to 1200x MAGNIFICATION: This electronic microscope offers 50x to 1200x magnification, allowing you to clearly see even the smallest details of your sample. It is not only a microscope, but also a camera that can take photos ,videos and display multiple professional image effects such as: normal nodel,image mirror,image flip,black & white,negative film,red/green/blue, professionalize your research and....
HiLetgo 2pcs 0.36\ 4-Digit Tube LED Segment Display Module Red Common Anode TM1637 Drive Chip Tube Clock Display for Arduino UNO R3
4-digit LED display module with LED brightness adjustable and clock point..
Display device is a total of 4 red LED word tube. Digital tube 8 grayscale adjustable..
The driver IC is TM1637, only two signal lines can make MCU control four Digit 8-segment LED. Can be used to display decimal, letters and so on..
Control interface: a total of 4 pins (GND, VCC, DIO, CLK), GND to ground, VCC for the power supply, DIO for the data input and output pins, CLK for the clock signal pin..
Deeyaple Small Digital Alarm Clock LED Desk Travel Electronic Clock Dual Alarm Snooze Dimmable Day Set 12/24H Week Display 4inch White (No Battery＆Adapter)
Adjustable Brightness:Led Digital Alarm Clock has 3 brightness level. You can adjust the brightness from Low-Medium-Bright or turn off the led display. The low brightness display illuminates well in dark spaces,showing the time easily and protect your eyes..
Easy to Read,Mini to Carry:This is a nice modern clock with cool,white readout. The bold numbers and color make it easy to read and stylish. Simple and small. Can put the small clock on night stand or dresser,doesn’t take up much space. It can also used as a portable travel clock mini to carry..
Outlet Powered:Led digital clock can be outlet powered(Note:A USB cord is included but no AC adapter and battery)..
Dual Alarms Clock,Alarm Days Setting,Snooze Function:Led alarm clock can set dual alarms,one for getting up and could enjoy a 5-minute snooze and one for work/school reminder. Led Digital Alarm Clock can set different alarm days,meet your different alarm clock days needs..
Week Display and 12/24H Function:Week and time can be displayed on the same screen,no need to switch screen,can read the week easily. Optional 12 or 24 hour time display according to your own habits..
Deeyaple Small Digital Alarm Clock LED Desk Travel Electronic Clock Dual Alarm Snooze Dimmable Day Set 12/24H Week Display 4inch Black (No Battery＆Adapter)
Adjustable Brightness:Led Digital Alarm Clock has 3 brightness level. You can adjust the brightness from Low-Medium-Bright or turn off the led display. The low brightness display illuminates well in dark spaces,showing the time easily and protect your eyes..
Easy to Read,Mini to Carry:This is a nice modern clock with cool,white readout. The bold numbers and color make it easy to read and stylish. Simple and small. Can put the small clock on night stand or dresser,doesn’t take up much space. It can also used as a portable travel clock mini to carry..
Outlet Powered:Led digital clock can be outlet powered (Note:A USB cord is included but no AC adapter and battery)..
Dual Alarms Clock,Alarm Days Setting,Snooze Function:Led alarm clock can set dual alarms,one for getting up and could enjoy a 5-minute snooze and one for work/school reminder. Led Digital Alarm Clock can set different alarm days,meet your different alarm clock days needs..
Week Display and 12/24H Function:Week and time can be displayed on the same screen,no need to switch screen,can read the week easily. Optional 12 or ....
Dcorn 7\ HDMI LCD Digital Microscope,1300X Coin Microscope for Adults,16MP Micro Soldering Video Microscope with LED Lights Touch Control, Windows/Mac OS/TV Compatible
7 inch large HD screen with 1024*600 resolution: Compared with the 4.3-inch screen, Dcorn 7 inch digital microscope with screen provides you with 40% more viewing field of vision. You can realize the effect of multiple people watching at the same time without connecting to a computer. The screen resolution is up to 1024 * 600 resolution, bring you a vivid and crystal clear micro world..
Observe Entire Coins in Detail Easily: Dcorn coin microscope for error coins comes with a 4.7-inch extension tube make coin fans can see entire coins easily. Including and not limited to a dime, penny, nickel, quarter, dollar, even the large silver dollar..
HDMI/USB Output for Lager View: Dcorn HDMI microscope supports connecting to any monitor with HDMI interface or PC , allowing you to get a larger field of view for sharing and discussion. When it is connected to the PC, you just need to run the default "Windows Camera" for Windows 10 or "Photo Booth" for iMac/MacBook,no extra software needed,very convenient..
2 Side Lights Designs & Touch Control: Dcorn LCD microscope is equipped with 8 built-in lights around the lenses and 2 side lights with a 360-degree adjustable angle, that use a smart brightness adjustment touch control, which makes it easier to operate and obser....
