Z-80 Microprocessor Trainer (Microprocessor Training Kit)

 

Z-80 Microprocessor Trainer (Microprocessor Training Kit) - This product is a Z-80 microprocessor practicum tool equipped with an 8-bit LED output. 
Very suitable for students and students, and hobbyists
Always ask for stock conditions before ordering.
Specification:
CPU: Z80-CPU
RAM: 2 Kbyte and expandable up to 4 Kbyte (6116)
EPROM: 2 Kbyte
Display: 6 digit seven segment
Keyboard: 36 keys (19 function keys, 16 hexa digit keys and 1 reset key)
Krisbow aluminum suitcase packaging
Package contains:
Z80 Microprocessor Trainer
PIO LED Output Interface
AC to DC Power Supply 5V / 500mA
Practice guide and answer key (PDF file)

Complete Digital Stereo Mini FM Transmitter

Complete Digital Stereo Mini FM Transmitter - An FM transmitter with clear audio quality is not inferior to a million-priced transmitter with a range ranging from 2 to 5 kilometers depending on the height 
of the antenna. It is suitable for community radio, school radio, shop radio, or for broadcasting within the city, sub-district or village scope.
The advantage of this FM transmitter is that it is waterproof 24 hours non-stop every day, it is equipped with an internal power supply and a cooling fan in it. 
Digital channel display 87.5 - 108MHz there is an UP/DOWN button to adjust the empty channel in the respective area.
Features:
FM transmitter ready on air
Stereo audio input L/R
Digital PLL 87.5 - 108MHz
Mini compact design
Power output 5 watts
Internal power supply
Save electricity consumption only 36watt
Sales Package:
1x Stereo FM Transmitter
1x Cable 12 meters
1x Antenna dipole

HF Trasceiver Icom IC7300 New Ori 1 Year Service Warranty IC-7300 SSB

HF Trasceiver Icom IC7300 New Ori 1 Year Service Warranty IC-7300 SSB -

HF Trasceiver Icom IC7300

New ORI 1 year service guarantee

* Output power: 100W (25W AM)

* RX Frequencies : 0.030-74.800

* Receiver type: Direct sampling

SPECS

* Frequency coverage : 0.03074.800*

* Modes: SSB, CW, RTTY, AM, FM

* Number of channels : 101 (99 regular, 2 scan edges)

* Antenna connector: SO-239 (50)

* Power supply requirement : 13.8V DC 15%

* Power Consumption :

Tx: 21A (at 100W output power).

Rx: 0.9A typical (standby), 1.25A (Max audio).

* Operating temperature range: 10C to +60C; 14F to 140F

* Frequency stability : Less than 0.5ppm (10C to +60C; 14F to 140F)

* Frequency resolution: 1Hz

* Dimensions : 24094238mm; 9,453.79.37in

* Weight : 4.2kg; 9.26 lb (approximately)

* Transmitter output power: 100W on HF/50MHz, 50W on 70MHz

* Tuner matching SWR range : 3:1 full power, 10:1 emergency mode (50% power)

Equipment:

* IC-7300,

* HM-219,

* DC Cable

* Fuse

* Guarantee card

* Manuals.

DC Cable Ori 4 Pin

Arduino Nano 5V 16MHz Compatible Development Board ATmega328P

 

Arduino Nano 5V 16MHz Compatible Development Board ATmega328P - 

Based on Arduino Nano Development Board and layout. Reliable for projects that need low power consumption.

8 analog inputs: A0 ~ A7

14 Digital input/output: TX, RX, D2~D13

6 PWM ports: D3, D5, D6, D9, D10, D11

1 pair serial transceivers: RX & TX

Using Atmega328 AU

There is bootloader installed

Support USB download and Power

Support for external 5V ~ 12V DC power supply

Support power supply by 9V battery

Support ISP download

Notes:

There may be slight variations in components and layouts from each batch of shipments, but the functionality and pinout remain the same.

Smarthome, IoT, ESP32, alternative ESP8266, DIY, Atmel, sensor programming, automation, deep sleep, low current consumption, Atmel, ATmega328P, SMD

ESP-WROOM-32 Dual Core Development Module ESP32 WiFi Bluetooth ESP-32s

 

ESP-WROOM-32 Dual Core Development Module ESP32 WiFi Bluetooth ESP-32s

Quality Notes:
This is the Premium version of the ESP32 Board that still uses quality components, not the strip-down version of the board whose components are replaced 
to make it cheaper,
but at the expense of reliability.
1. Serial Chip: CP2102 (not CH9102)
2. Main Capacitor: Yellow Tantalum (not Black Tantalum)

ESP32 chip specifications:
+ Cores: Dual
+ Wi-Fi: 2.4 GHz up to 150 Mbits/s
+ Bluetooth: BLE and Legacy Bluetooth
+ It runs 32 bit programs.
+ Clock frequency: up to 240MHz
+ RAM: 512 kB
Peripherals:
+ Hall Effect Sensor
+ Temperature Sensor
+ Capacitive Touch
+ ADCs
+ DACs
+ UART
+ SPI
+ I2C
+ I2S (Integrated Inter-IC Sound)