Differences

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--- manual [2020/11/30 15:02]
bgfdsuperadmin created
+++ manual [2020/11/30 19:57]
bgfdsuperadmin
@@ Line 1: / Line 1: @@
-====== HC-12 Manual ======
+====== HC-12 Wireless Serial Port Communication Module ======
-HC-12 Wireless Serial Port Communication Module
+=====User Manual version 2.3B =====
-User Manual version 2.3B
+//updated from v1.1 English and v2.3 Chinese//
-(updated from v1.1 English and v2.3 Chinese)
-Product Applications
+//Edited by Bluegoldfishdesign 20-Nov-20//
-• Wireless sensor
+{{ hc12:hc12pcb.png }}
-• Community building security
-• Robot wireless control
+=== Product Applications ===
-• Industrial remote control and telemetry
+  * Wireless sensor
-• Automatic data acquisition
+  * Community building security
-• Container information management
+  * Robot wireless control
-• POS system
+  * Industrial remote control and telemetry
-• Wireless acquisition of gas meter data
+  * Automatic data acquisition
-• Vehicle keyless entry system
+  * Container information management
-• PC wireless networking
+  * POS system
-Document History:
+  * Wireless acquisition of gas meter data
-/10 version 1.1 English, www.seeedstudio.com
+  * Vehicle keyless entry system
-/09 version 2.3 Chinese, www.wavesen.com
+  * PC wireless networking
-/01 version 2.3B Translated v2.3 online and merged with v1.1 by RR
+== Document History ==
-Product Features
+  * 2012/10 version 1.1 English, www.seeedstudio.com
-• Long-distance wireless transmission (FU3: 1000m in open space, baud rate
+  * 2014/09 version 2.3 Chinese, www.wavesen.com
-bps in the air. FU4: 1800m in open space, baud rate 500bps in the air)
+  * 2016/01 version 2.3B Translated v2.3 online and merged with v1.1 by RR
-• Working frequency range (433.4-473.0MHz, with 100 communication channels)
+  * 2020/11 version 2.3B(BGFD) Edit of v2.3B by Bluegoldfish Design (CJM)
-• Maximum 100mW (20dBm) transmitting power (8 levels of power can be set)
+=== Product Features ===
-• Four working modes, adapted to different application situations
+  * Long-distance wireless transmission (FU3: 1000m in open space, baud rate 5000bps in the air. FU4: 1800m in open space, baud rate 500bps in the air)
-• Built-in MCU performs communication with external device through serial
+  * Working frequency range (433.4-473.0MHz, with 100 communication channels)
-port, no programming or configuration required for basic use
+  * Maximum 100mW (20dBm) transmitting power (8 levels of power can be set)
-• The number of bytes transmitted continuously is unlimited (FU1 and FU3
+  * Four working modes, adapted to different application situations
-modes only)
+  * Built-in MCU performs communication with external device through serial port, no programming or configuration required for basic use
-• Update software version through the serial port
+  * The number of bytes transmitted continuously is unlimited (FU1 and FU3 modes only)
-Product Introduction
+  * Update software version through the serial port
+=== Product Introduction ===
 The HC-12 wireless serial port communication module is a new generation of
 multi-channel embedded wireless data transmission module. Its wireless working
@@ Line 38: / Line 39: @@
 serial speed) in open space, 1800m in FU4 mode at reduced baud rate and volume
 of data.
 The module uses stamp hole packaging to allow for patch soldering, with
 dimensions of 27.8mm ×14.4mm ×4mm (including antenna cap, excluding spring
@@ Line 45: / Line 47: @@
 an antenna solder eyelet ANT2 on the module, convenient to solder a spring
 antenna to. Select one of these antenna options according to usage requirements.
 The module has an onboard MCU, eliminating the need for user to program the
 radio section separately, with transparent half-duplex serial transmission
@@ Line 53: / Line 56: @@
 FU4 in idle state are: 3.6mA, 80uA, 16mA, and 16mA respectively, while the
 maximum working current in any mode is 100mA (in the transmitting state).
-Product Configuration
+=== Product Configuration ===
 Standard configuration of the HC-12 module only contains one 433MHz-frequencyband
 wireless communication module with IPEX20279-001E-03 standard RF socket.
@@ Line 60: / Line 64: @@
 with BNC connector base. The user can purchase these according to their
 application requirements.
-Technical Details
+=== Technical Details ===
 The HC-12 module uses a Silicon Labs Si4463 to provide the RF communications
 link. This is a high performance, low current, single-chip “EZRadioPRO” family
@@ Line 70: / Line 75: @@
 be aware of the RF link. Serial port and transceiver configurations are held in
 onboard non-volatile flash memory.
-Product Dimensions
-Definition of Pins
+=== Product Dimensions ===
+{{ hc12:hc12dimensions.png }}
+=== Definition of Pins ===
 The HC-12 module can be patch soldered, or have a 2.54mm-spacing pin header
 attached and directly inserted onto the user’s PCB. The module has nine pins in
 total, and one RF antenna socket (ANT1), with definitions as shown in the table
 below:
-Pin Definition I/O direction Notes
-Vcc
+^ Pin ^ Definition ^ I/O direction ^ Notes ^
-Power supply input, DC3.2V-5.5V, with load
+| 1 | Vcc |  | Power supply input, DC3.2V-5.5V, with load capacity not less than 200mA. Note: if the module is working in the transmitting state for an extended time, it is suggested that a 1N4007 diode be connected in series if the supply voltage is greater than 4.5V, so as to avoid overheating the onboard LDO regulator |
-capacity not less than 200mA. Note: if the
+| 2 | GND |  | Common ground |
-module is working in the transmitting state
+| 3 | RxD | Input (weak pullup) | UART data input, TTL level. 1k resistor connected in series inside the module |
-for an extended time, it is suggested that a
+| 4 | TxD | Output | UART data output, TTL level. 1k resistor connected in series inside the module |
-N4007 diode be connected in series if the
+| 5 | SET | Input (10k pullup) | Parameter setting control pin, active low level. 1k resistor connected in series inside the module |
-supply voltage is greater than 4.5V, so as to
+| 6 | ANT | Input/Output | 433MHz antenna pin |
-avoid overheating the onboard LDO regulator
+| 7 | GND | Common ground |
-GND Common ground
+| 8 | GND | Common ground |
-RxD
+| 9 | NC |   | No connection, used in mechanical fixing, compatible with HC-11 module pin position |
-Input
+| ANT1 | ANT | Input/Output | IPEX20279-001E-03 antenna socket |
-(weak pullup)
+| ANT2 | ANT | Input/Output | 433MHz spring antenna solder eyelet |
-UART data input, TTL level. 1k resistor
-connected in series inside the module
-TxD Output UART data output, TTL level. 1k resistor
-connected in series inside the module
-SET
-Input
-(10k pullup)
-Parameter setting control pin, active low
-level. 1k resistor connected in series inside
-the module
-ANT Input/Output 433MHz antenna pin
-GND Common ground
-GND Common ground
-NC
-No connection, used in mechanical fixing,
-compatible with HC-11 module pin position
-ANT1 ANT Input/Output IPEX20279-001E-03 antenna socket
-ANT2 ANT Input/Output 433MHz spring antenna solder eyelet
 Pins 1-6 each have two bonding pads, with the outer half-hole bonding pads
 intended for patch soldering. When the inner bonding pad ANT2 of Pin 6 is used
@@ Line 112: / Line 102: @@
 round-hole bonding pads of Pins 1-5 may then be used to solder a 2.54mm-spacing
 pin header that can be plugged into a PCB socket.
-Wireless Serial Port Transparent Transmission
+=== Wireless Serial Port Transparent Transmission ===
 (1) Simple introduction of working principle
 As shown in the above diagram, two HC-12 modules can be used in place of
 physical wiring to replace a wired half-duplex serial communications link