Difference between revisions of "radino rf serial bridge"

Revision as of 13:08, 1 June 2017 (view source) CGruenig (Talk | contribs) (→‎Overview) ← Older edit		Latest revision as of 10:40, 25 July 2017 (view source) CGruenig (Talk | contribs) (→‎Command mode)
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Latest revision as of 10:40, 25 July 2017

Contents 1 Overview 2 Configuration 3 Usage 4 Command mode

[edit] Overview

The radino rf serial bridge is an example for a uart bridge over radio.

Currently implemented is the functionality following radino wireless chips:

• CC1101 at 868.3 MHz (radino CC1101, radino32 CC1101)
• CC1101 at 922.5 MHz (radino CC1101, radino32 CC1101)
• CC1101 at 433 MHz (radino CC1101, radino32 CC1101)
• RF69 at 433 MHz (radino RF69)
• RF233 at 2.4 GHz (radino RF233)

[edit] Configuration

At the section "Main configuration" within the sketch the used hardware has to be configured.

Which serial interface to bridge over wireless

#define BRIDGED_SERIAL_SELECTION BRIDGE_HWSERIAL
#define BRIDGED_SERIAL_SPEED 9600

Which wireless chip is used

#define WIRELESS_HARDWARE CC1101_868_38400_p100

If and which pin is used to enter command mode

#define CONFIG_BUTTON_PIN 5

If TX and RX LEDs should display activity on the serial interface

#define USE_SERIALLEDS true

Define bigger buffers for the radio communication is necessary. Note that this only makes sense on radino32 modules with its bigger memory.

//#define MY_RADIO_BUFSIZE  4096  //Overide Buffer for data received from radio
//#define MY_UART_BUFSIZE   4096  //Overide Buffer for data received from uart

[edit] Usage

• 1 select serial to bridge. Default: HardwareSerial1
• 2 select wireless chip. Default: CC1101 at 868mHz
• 3 Upload the sketch to your radino modules.
• 4 Connect serial hardware to the interface selected in step 1.
• 5 Data received by one module is written out one the other one.

[edit] Command mode

By pulling down the commandModePin the module is put into the command mode, where wireless addressing can be changed.

The module will print the info string

N)wID:00  M)yID:FF  T)gtID:FF  L)istenBC:1  S)tore  P)ing  R)eload  Q)uit

NwID: Network ID. Only messages from our network are accepted
MyID: Our ID. Messages targeted at our ID are received. Is used as srcId in messages. 0xFF: BroadcastAdress->is not ACKed
TgtID: Targets ID. Messages are sent to this device. 0xFF: Broadcast
ListnBC: Are we accepting messages targeted at the Broadcast ID 0xFF

Commands consisting of up to 3 chars can then be entered.
The chars are shifted in and on '\r' or '\n' the last 3 entered ones are interpreted as command.

Available commands

"nXX": set network ID to XX (Hex)
"mXX": set my ID to XX (Hex)
"tXX": set target ID to XX (Hex)
"lXX": set broadcast listening (Hex) (0->off, else->on)
"s": store values to eeprom
"r": reload values from eeprom
"p": ping and list devices in range
"q": exit command mode

Examples

"n2m55\r" -> command "m55" is executed
"l0\r" -> command "l0" is executed
"sss\n" -> command "s" is executed
"qss\n" -> command "q" is executed

Output of the sequence "CommandModePin LOW", "p\r\n", "q\r\n"

Entering command mode
N)wID:00  M)yID:FF  T)gtID:FF  L)istenBC:1  S)tore  P)ing  R)eload  Q)uit
> p
p: Pinging neighbours
ID      MyRSSI  TgtRSSI
FF      -30.50  -29.50
OK
N)wID:00  M)yID:FF  T)gtID:FF  L)istenBC:1  S)tore  P)ing  R)eload  Q)uit
> q
q: Quitting command mode
OK