MCU users, if you accept a small load KEY can be connected to the microcontroller about 20s to provide a low level allows the module to continue working. Trigger mode: low level trigger (ground).
In discharge mode (The charging mode KEY function is invalid), trigger the KEY port once to open the output.
continuously trigger the KEY port twice to close the output..
The first time the load is connected, the output is automatically turned on. If the load is less than 50MA, the output will be automatically turned off after 30 seconds.
if the load is greater than 50MA, the output will be automatically turned on..
Allow discharge while charging. (Note: At this time output voltage 4.7 / 5V).
Geekstory BN-220 Dual GPS Glonass Module Navigation TTL Level 9600bps + GPS Passive Antenna for Arduino Raspberry Pi Pixhawk F3 CC3D Betaflight F4 Flight Control
BN-220 gps module has flash to save configuration, so you do not need to reset data next time when you use it. But it has no compass. If you need gps with flash and compass, please buy bn-880 from Geekstory..
When you use it for Raspberry Pi, there is no driver needed but you need to install software.
The TX LED flash means gps module output normally.The PPS LED flash means gps module locate your place..
Data Level : TTL or RS-232,Default TTL level. To make it be RS232 output, you need to use one TTL to RS232 converter cable.
BN 220 gps module documentation link cannot be displayed. If you need technical documentation, please click “Ask a question” to em-ail us.
The DFPlayer Mini MP3 Player For Arduino is a small and low price MP3 module with an simplified output directly to the speaker..
It supports common audio formats such as MP3, WAV and WMA..
The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an Arduino UNO or any other....
DROK® DC-DC Buck Converter 3.5-30V to 0.8-29V 10A Step-down Volt Adjustable Output Voltage Regulator Module Power Supply with High Accuracy Voltmeter Red Digital Tube Display
DROK DC buck converter input voltage range is DC 3.5~30V, output adjustable voltage range is DC 0.8~29V, max output current is 10A, conversion rate....
LED Voltage Meter: the step down regulator is equipped with high accuracy voltmeter, red LED display, press the key to switch display input voltage or....
Metal Case: DROK volt transformer is designed with metal case, can protect the module from destroying, and the case itself is a heat sink, excellent....
Note: please make sure that the input voltage is higher than the output voltage at least 1V.
please note that this module doesn't have reversed....
Small Size: the switching power supply module is with compact design, dimension is 85mm*58mm*33mm(L*W*H)..
100dB Logarithmic Amplifier Module Dynamic Range Detection with Limiting Output for FSK PSK Demodulation 5MHZ‑500MHZ
WORKING PRINCIPLE - Logarithmic output of the logarithmic amplifier module is proportional to the logarithm of the input signal..
STABLE AND ACCURATE - ±0.4 dB RSSI linearity, RSSI scale does not change with temperature and feed voltage..
WIDELY USED - Used for received signal strength indicator (RSSI) and phase detection in cellular base stations, radar and other radio transceiver applications..
WITH LIMITING OUTPUT - AD8309 amplifier module, with limiting output, can be used as FSK PSK demodulation..
PARAMETER RANGE - 16mA current, 20 mV/dB slope, ‑95 dBm intercede, SMA female, 5MHZ‑500MHZ frequency range, 100 dB gain..
AllAboutAdapters RF Coax to HDMI VGA Component YPbPr Video Demodulator TV Tuner for NTSC System
2-In-1 RF coax TV tuner solution for decoding RF coax CATV signals into 1080p HDMI output or HD Component YPbPr video audio output. Professional grade agile RF coax demodulator for converting the RF coax cable TV signals into either 1080p HDMI or DVI output at 1920x1080 pixels. Decode all UHF/VHF channels, analog cable TV channels, satellite RF output and other modulated outputs..
Supports all coax signals coming from cable outlets or cable boxes with RF output only, satellite receivers or modulated CCTV security systems. Premium external TV tuner module for MATV/SMATV systems used in campus, classrooms, hotels, hospitals, sports bars or restaurants. Full-frequency analog NTSC cable channel support from CH2 to CH139. Full aerial VHF/UHF channel support from CH2 to CH83. Backward compatible with all DVI equipments via using HDMI to DVI adapter..
Easy replacement solution for HDTVs with broken coax tuner inputs. External add-on TV tuner module for LCD TV, HD monitor/projector without coax inputs. Advanced HD video processor with digital comb filter for smooth digital video/audio output. Premium de-Interlacer with low noise reduction technology adopted for clear and sharp images with fine details..
Multiple of these RF demodulator/tuner units can work....
DC Buck Converter, DROK DC to DC Step Down Power Supply Module 10V-65V to 0-60V 0-12A Adjustable Voltage Regulator Transformer Board with LED Display for Volt Reducer
【Adjustable Output Voltage and Current】For DROK buck converter: Input voltage range is DC 10-65V.
Output voltage range is DC 0-60V, can be arbitrary adjustable and used to convert 24v to 12v 5v.
Output current range is 0-12A, can be arbitrary adjustable.
【LED Display】This power supply module is designed with LED display, which can show real-time voltage, current, capacity and time..
【Constant Current and Voltage with Indicator Lights】This volt transformer board can set constant output voltage and constant output current by the key buttons. Also, the module is equipped with working status indicator lights, which are output OUT, constant voltage CV and constant current CC respectively, so that the working status can be checked in real time..
【Auto Output and Button Lock Mode】Automatic output can be set after power on. And The parameter adjustment button can be locked to prevent misoperation to adjust the output voltage and current parameters..
【Cooling fan and cooling pad】This adjustable power supply converter is equipped with cooling fa....
Juried Engineering LM339N LM339 Quad Differential Comparator Industrial Grade Breadboard-Friendly IC DIP-14 (Pack of 5)
SINGLE-CHANNEL: TLV3501 is a single-channel high-speed push-pull output comparator, delay is 4.5ns, supply voltage: + 2.7V to + 5.5V.
FRONT SHAPING MODULE: This module can be for a wide range of voltage signal shaping period, as the frequency, phase difference time domain measurements and other front-end conditioning module.
CMOS AND TTL: Rail-to-rail output can directly drive a CMOS or TTL logic.
EASY TO OPERATE: Without threshold setting, the sine wave, square wave and triangular wave can be transformed into square wave, which can be used easily without debugging.
GREAT EXTENSIBILITY: At the same time, it has great extensibility, just change a small amount of the original.
AOICRIE 2PCS DS3231 Real Time Clock Module RTC Clock Memory Module 3.3V/5V for Raspberry Pi (2PCS Yellow)
The RTC clock module is of complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing , provide valid until the year 2100 leap year compensation.
The RTC clock module is of ±3℃ digital temperature sensor, and the timing accuracy kept at ± 5ppm (± 0.432 sec / day).
The RTC clock module has the characteristic of low power consumption, with 1 Hz and 32.768 kHz output.
The RTC clock module itself can be adapted to 3.3 V and 5 V system, with -40 ° C to +85 ° C temperature range, easy and convenient to use.
for Raspberry pi highest precision clock module DS3231, note board can also use this module..
