Hardware Overview rev. 2.8-rus

Материал из Wiren Board
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Wiren Board rev. 2.8

Description

Here is a description of Wiren Board controller version 2.8.

Wiren Board consists of two printed circuit boards:

Main board contains:


Wiren Board rev. 2.8
Wiren Board rev. 2.8
Power supply circuit


Dimensions

Board dimensions - length - 105 mm (+ 3 mm Ethernet and USB connectors), width - 54 mm (+3 mm power connector), height - 20 mm.

The distance between the mounting holes is 96 and 46 mm.

One of the corners is made with perforation for breaking. This makes it easy to install in the housing, where the corners are located under the cover screws rack.

Power supply

Supply voltage is 4.7-22V. The average consumption of the board is 1.5-2 watts. But since the GPRS module consumes up to 8W impulsively, it is recommended to use power supplies with a power of at least 10W.

Разъем питания 5.5x2.1мм, также входное напряжение можно подключать к клемме 17.


The On/Off Button

Connect the locking button or toggle switch to the holes on the Board. When the contacts are closed, the Board is disconnected. The battery continues to charge.

Power over Ethernet

Only in PoE-enabled version. Versions with PoE support have the inscription HLJ-6115ANL on the Ethernet-connector. Connecting Power over Ethernet to a Wiren Board without PoE support (labeled HanRun on the Ethernet connector) will damage the device!

Connecting PoE with the power supply causes damage to the power supply.

Power over Ethernet is supported via cable  Passive PoE with voltage from 7 to 24 Volts. 

Power is transmitted in unused pairs: "+" ("-") pair 4-5 (blue, white and blue), "-" ("+") on paired 7-8 (brown, white-brown). Polarity doesn't matter.

See Power over Ethernet/en.

Battery

The Wiren Board allows you to connect a Li-Ion (Li-Pol) battery with a maximum voltage of 4.2 V. When you connect the power, the battery is charged with a current of up to 0.5 A (depending on the load). There is protection against over-discharge of the battery, at a voltage below 2.9 V the battery is disconnected. However, it is recommended to use protected batteries.

In the current version there is no protection against charging at low temperatures. Be careful, the batteries deteriorate from this.

It is necessary to meet the battery polarity!


ADC

The user can access 7 ADC channels displayed on the terminals (see table). The maximum measured voltage is 5V. See. ADC/en.

Terminal blocks

See also Low voltage load control.

Terminal function Max. V, I GPIO olinuxino output default state* comments
Terminal strip 2 FET/ADC 30V, 2A 32 3 @ CON1 Open open collector Output, ADC/en channel 3
Terminal strip 3 FET/ADC/en 30V, 2A 33 4 @ CON1 Closed open collector output, ADC/en channel 0
Terminal strip 4 FET/ADC/en 30V, 2A 34 5 @ CON1 Closed open collector Output, ADC/en channel 1
Terminal strip 5 FET/ADC/en 30V, 2A 35 6 @ CON1 Open open collector Output, ADC/en channel 2
Terminal strip 6 FET/ADC/en 30V, 2A 39 10 @ CON1 Undefined open collector Output, ADC/en channel 4
Terminal strip 7 FET/ADC/en 30V, 2A 1 12 @ CON1 Undefined open collector Output, ADC/en channel 6
Terminal strip 8 GND
Terminal strip 9 GPIO operation/ADC/en 3.3 V, 10mA 2 13 @ CON1 47K pull-up ADC channel 7
Terminal strip 10 GPIO operation 3.3 V, 10mA 3 14 @ CON1 47K pull-up
Terminal strip 11 GPIO operation 3.3 V, 10mA 4 15 @ CON1 47K pull-up
Terminal strip 12 RS-485/en A | |if there is RS-485
Terminal strip 13 RS-485/en B | |if there is RS-485
Terminal strip 14 GND
Terminal strip 15 +3.3 v 0.5 A
Terminal strip 16 +5.0 v 0.5 A
Terminal strip 17 Vin 22 Input voltage; ADC channel 5
Terminal strip 18 GND
Terminal strip 19 Power FET 60V, 3A 28 @ CON2 Undefined with hardware PWM

/* When the system boots, transistors will be in these States. This is a feature (bug) version of WB2.8.

GPIO

See List of GPIOs.

Debug UART

UEXT pinout for IDC connector
(looking into connector on host board)

Output to uext1 connector (black connector with ten pins on the long side of the Board).

Source files

See Wiren Board v.2.8 source files

Board drawing

Файл:WB 2.8 chertej.pdf