Differences

This shows you the differences between two versions of the page.

--- common:connectorpinouts_connectionoptions [2017/09/06 19:52] – Pedro Ramilo
+++ common:connectorpinouts_connectionoptions [2018/02/15 10:28] – Pedro Ramilo
@@ Line 2: / Line 2: @@
 All Seed Robotics models come standard with USB interface and one main interface (the main connector), with a logical interface selected by the customer: One Wire TTL, Full Duplex TTL or RS485.\\
-In addition an [[dh4d:bluetooth| Optional Bluetooth Module]] can be installed on the unit and connects to any terminal that supports the Bluetooth SPP (Serial Port) Profile.
+In addition an [[eros:bluetooth_module| Optional Bluetooth Module]] can be installed on the unit and connects to any terminal that supports the Bluetooth SPP (Serial Port) Profile.
 Below we detail the connector types for the units and connection diagrams with the most commonly used tools.
@@ Line 14: / Line 14: @@
-==== Main Connector: One Wire Serial TTL Interface ====
+==== Main Connector: One Wire TTL UART Interface ====
-The One Wire TTL Serial interface enables daisy chained connection of multiple units.
+The One Wire TTL Serial (UART) interface enables daisy chained connection of multiple units.
-This interface operates natively at 3.3V but it is tolerant to 5V or higher voltages making it compatible with virtually all devices operating at TTL level.
+This interface operates natively at 3.3V but it is tolerant to 5V, for interfacing with devices with 5V TTL logic.
 This interface option is directly compatible with Robotis Dynamixel AX, MX series of servos. It can also connect to XL and XM series of servos provided you create a necessary adapter cable or board to connect them.
-It is important to note that this connection uses only 1 wire for DATA, which means a special adapter is required to control the line switching between RX and TX.\\
+It is important to note that this connection uses only 1 wire for DATA, which means a special adapter (or appropriate code for switching TX/RX on and off) is required to control the line switching between RX and TX. The unit already includes the necessary pull-up (10KOhm) on the DATA line.\\
 The most common adapters and connection methods are shown below.
@@ Line 36: / Line 36: @@
 {{:common:connect-to-existing-dynamixel-chain.jpg?direct&400|}}
-__**Connector pinout for TTL signal level interface:**__
+__**Connector pinout for One Wire TTL UART signal level interface:**__
 {{:dh4d:connector-pinout-one-wire-ttl.png?direct&300|}}
-==== Main Connector: RS485 Serial Interface ====
+==== Main Connector: RS485 UART Serial Interface ====
 The RS485 interface uses a differential pair to operate in half duplex mode.
@@ Line 58: / Line 58: @@
 {{:common:connect-to-existing-dynamixel-chain.jpg?direct&400|}}
-__**Connect to an RS485 converter:**__
+__**Connect to a generic RS485 converter:**__
 The diagram below is generic: it is designed in a way to suit all major RS485 converters.\\
 If you have any question regarding connection to your specific converter, please contact support@seedrobotics.com and we'll be happy to assist you.
-When selecting an RS485 converter, please observe the maximum baud rate of the converter. Bear in mind the default communication speed on the main port is 1Mbps. While it is possible to reduce it to a much lower value (115.2/57.6/9.6 kbps), we recommend 1Mbps or higher for best performance.
+When selecting an RS485 converter, please observe the maximum baud rate of the converter. Bear in mind the default communication speed on the main port is 1Mbps. While it is possible to reduce it to a much lower value (115.2/57.6/9.6 kbps) for compatibility with a slower RS485 converter, we recommend 1Mbps or higher for best performance.
 {{:common:connect-via-rs485.jpg?direct&400|}}
@@ Line 80: / Line 80: @@
 Failure to do so will result in the Actuators not responding and the hand not moving as they will not be powered.
-**IMPORTANT:** you can connect via USB even if your unit is already connected via any of the other ways shown above.
+**IMPORTANT:** you can connect via USB even if your unit is already connected via any of the other ways shown above. The firmware is capable of receiving commands simultaneously from the main connector and the USB connector. This especially useful for **online** diagnostics and maintenance.
 {{:common:connect-via-usb.jpg?direct&400|}}
@@ Line 93: / Line 93: @@
 **IMPORTANT:** you can connect via Bluetooth even if your unit is already connected via any of the other ways shown above. The unit can simultaneously accept commands through the main port and the Bluetooth interface.\\
-This is especially convenient for **online diagnostics** and maintenance.
+This is especially convenient for **online, wireless diagnostics** and maintenance.
 When connecting via Bluetooth, you must apply power through the Main Connector as shown in the diagram below.\\
@@ Line 101: / Line 101: @@
 By default the firmware is configured to expose the Console over Bluetooth. This means that control using the Dynamixel protocol is not enabled by default on the Bluetooth port (although it can be enabled if required).\\
-For more information, see the [[eros:consolecommands|List of Console Commands (for EROS architecture)]].
+For more information, see [[eros:bluetooth_module|Using the Bluetooth Interface Module]].