HC-12 Wireless Transceiver Modules 433Mhz – 1000 Meters

HC-12 Wireless Transceiver Modules 433Mhz – 1000 Meters

HC-12 Wireless Transceiver Modules 433Mhz are wireless serial port communication modules, It is based on SI4463 RF chip, it has built in microcontroller, and can be configured using AT commands, Maximum output power is 100mW (20dBm) and receiver sensitivity differs from -117dBm to -100dBm, depending on transmission speed. It accepts 3.2V-5.5V and can be used with 3.3V and 5V UART voltage devices (3.3V safe).

Each HC-12 can work in one of following modes:

1.    FU1 – moderate power saving mode with 250000bps “over the air” baud rate. Serial port baud rate can be set to any supported value

2.    FU2 – extreme power saving mode with 250000bps “over the air” speed. Serial port rate is limited to 1200bps, 2400bps, 4800bps

3.    FU3 – default, general purpose mode. “Over the air” speed differs depending on serial port speed. The same goes for maximum range:

• ·       1200bps ~ 1000m
• ·       2400bps ~ 1000m
• ·       4800bps ~ 500m
• ·       9600bps ~ 500m
• ·       19200bps ~ 250m
• ·       38400bps ~ 250m
• ·       57600bps ~ 100m
• ·       115200bps ~ 100m

4.    FU4 (available in version 2.3 or newer) – long range mode. “Over the air” speed is limited to 500bps and serial port speed to 1200bps. Because air speed is lower than port speed, only small packets can be send: max 60 bytes with interval of 2 seconds. In this mode range is increased to 1800m.

Pair of HC-12 that creates a wireless link has to work in the same mode (FU1, FU2, FU3, FU4) and with the same speed.

Configuration

HC-12 can be configured using AT command. The best way to do it, is to use USB-to-serial converter like CP2102. To put HC-12 into AT mode, pull SET pin to GND like this:

Most important commands:

1.    AT – test command. It will return OK if AT interface is enabled

2.    AT+Bxxxx – set serial port baud rate. For example, AT+B57600 set baud rate to 57600bps

3.    AT+Cxxx – set radio channel. Channels start from 001 at 433,4MHz. Each next channel adds 400kHz. Channel 100 is 473,0MHz. AT+C002 will set frequency to 433,8MHz. Two HC-12 devices that creates a wireless link have to operate on the same frequency

4.    AT+FUx – set device mode: FU1, FU2, FU3 or FU4. Two HC-12 devices that creates a wireless link have to use the same mode

5.    AT+Px – set device transmitting power. For example AT+P2 sets power to 2dBm (1.6mW)

• 1.   -1dBm (0.8mW)
• 2.   2dBm (1.6mW)
• 3.   5dBm (3.2mw)
• 4.   8dBm (6.3mW)
• 5.   11dBm (12mW)
• 6.   14dBm (25mW)
• 7.   17dBm (50mW)
• 8.   20dBm (100mW)

6.    AT+RX – retrieve all parameters: mode, channel, baud rate, power

7.    AT+V – retrieve module version

8.    AT+DEFAULT – reset module parameters to default settings

Features

• ·       Long-distance wireless transmission (1,000m in open space/baud rate 5,000bps in the air)
• ·       Working frequency range (433.4-473.0MHz, up to 100 communication channels)
• ·       Maximum 100mW (20dBm) transmitting power (8 gears of power can be set)
• ·       Three working modes, adapting to different application situations
• ·       Built-in MCU, performing communication with external device through serial port
• ·       The number of bytes transmitted unlimited to one time

Specification

• ·       Working frequency: 433.4MHz to 473.0MHz
• ·       Supply voltage: 3.2V to 5.5VDC
• ·       Communication distance: 1,000m in the open space
• ·       Serial baud rate: 1.2Kbps to 115.2Kbps（default 9.6Kbps）
• ·       Receiving sensitivity: -117dBm to -100dBm
• ·       Transmit power: -1dBm to 20dBm
• ·       Interface protocol: UART/TTL
• ·       Operating temperature: -40℃ to +85℃
• ·       Dimensions: 27.8mm x 14.4mm x 4mm

Claim orders from Stores

You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).

Please wait for an email notification regarding Your order status update.

Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva

Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva

Local delivery

Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.

Local delivery  (1-2 w.d.) price for items of any size is through through courier service is 4.50€ (incl. VAT). 

Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.50€ incl. VAT.

Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.50€ incl. VAT.

Payment on delivery +2.00€ (incl. VAT).

You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.

International delivery pricing through courier service

International shipping prices depend on geographic location:

Latvia - 5.50€ (incl. VAT)

Estonia - 6.50€ (incl. VAT)

other - negiotiated individually.

International delivery pricing to Omniva parcel terminals

Latvia - 6.00€ (incl. VAT)

Estonia - 8.50€ (incl. VAT)

Payments:

We accept payments via PayPal for orders over 20€.

Paid orders of more than 100€ are shipped for free to Baltic countries.

Product availability status meaning:

Vilnius Store In Stock - the product is at the store, Vytenio str. 20 in Vilnius and can be picked up / purchased the same day;

Kaunas Store In Stock - the product is at the store, Pramonės pr. 4D in Kaunas and can be picked up / purchased the same day;

Central Warehouse In Stock - In stock, product will be shipped in a short time 1-2 work days, there is no possibility to pickup on the spot;

1-2 work days - product will be shipped in a short time - 1-2 business days;

1-2 work days – we don’t have selected product in stock. Shipping time is only 1-2 work days;

3-5 work days – we don’t have selected product in stock. Shipping time is between 3-5 work days;

3-7 work days – we don’t have selected product in stock. Shipping time is between 3-7 work days;

Out of Stock – selected product is sold out at the moment, but you can apply for automatic alert by email when product will be in stock.