Differences

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

--- en:hardware:homelab:controller:atmega2561 [2011/10/21 21:07] – illo
+++ en:hardware:homelab:controller:atmega2561 [2020/07/20 12:00] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+<pagebreak>
 ====== Controller module ATmega2561 v1.x ======
 The main module of the HomeLab is a controller development board (controller board) equipped with the AVR ATmega2561 microcontroller. In addition to the microcontroller, the board consists of several peripherals, voltage stabilizer, connectors, JTAG programmer, Ethernet, SD memory card slot. The controller board has the following features:
@@ Line 19: / Line 20: @@
 [{{  :kit:atmega2561.jpg?580  |Controller module}}]
-Module is equipped with AC/DC rectifier circuit and LDO voltage stabilizer (with low dropout) - external feeder with voltage stabilization is not needed.
+The module is equipped with a AC/DC rectifier circuit and a LDO voltage stabilizer (with low dropout) -an external feeder with voltage stabilization is not needed.
+The module can be powered with a step down transformer with an output voltage which is greater than 6 volts and lower than 15 volts. In order to reduce power losses it is recommended to use power supply between 6-9V.  The POWER LED signalizes a connected feed (“POWER” description on the board).
+All ATmega2561 signals are available on three connectors on the edge of the board. Connectors pin assignment is described in the next part of this instruction. It includes full descriptions of ATmega2561 pins and their alternative functions. The module is equipped with a microprocessor reset circuit (when power on) and a reset button for a microprocessor restart. A microprocessor can be programmed with an on-board JTAG programmer over USB or with an ISP interface.
+To the seventh pin of port B (named as PB7) the status LED (described as PB7 on the board) is connected. This LED can be used as a status indicator of application software. Low state on PB7 pin causes the status LED to be lit.
+The module is equipped with SD memory card slot, where it can be used as a standard microSD memory card. The memory card is connected to the microcontroller via the ISP interface and can be used to store data where data must be maintained even if the power supply is removed.
-Module can be powered just from step down transformer with output voltage greater than 6 volts and lower than 15 volts. In order to reduce power losses it's recommended to use power supply between 6-9V. POWER LED signalizes connected feed (“POWER” description on the board).
+[{{:kit:atmega2561_sch.png?580|Components on the Controller board}}]
-All ATmega2561 signals are available on three connectors on the edge of the board. Connectors pin assignment is described in the next part of this instruction. It includes full descriptions of ATmega2561 pins and their alternative functions. The module is equipped with microprocessor reset circuit (when power on) and reset button for microprocessor restart. A microprocessor can be programmed with on-board JTAG programmer over USB or with ISP interface.
-To the seventh pin of port B (named as PB7) the status LED (described as PB7 on the board) is connected. This LED can be used as a status indicator of application software. Low state on PB7 pin causes the status LED to be lit.
-Module is equipped with SD memory card slot, where can be used standard microSD memory card. Memory card is connected to the microcontroller via the ISP interface and can be used to store data where data must be maintained even if power supply is removed.
-[{{:kit:atmega2561_sch.png?580|Kontrollerplaadi komponendid}}]
 ===== Connector Pins and Functions =====
@@ Line 48: / Line 46: @@
 |12|GND|-|GND |
-~~PB~~
+<pagebreak>
 {{:kit:pe-pb-pd.png?450  |}}
@@ Line 110: / Line 108: @@
 |26|3V3|-  |+3,3 V                             |
-~~PB~~
+<pagebreak>
-===== Ühendamine =====
+===== Connecting =====
-Connecting controller moudel with other modules or devices, you must first make sure that controller moudel power supply is not connected. Modules and devices must be connected to each other with care it's important not to use of excessive force.Wrong handeling may damage the module. For programming and to power with low currency (less than 500mA) you can only connect controll moudle with PC usin USB wire.If you are using modules that need to aggregate for more than 500 mA current to power the equipment you must use a separate power source. If controller module is connected to a separate power source, then module automatically don't use USB power suplly.
+When connecting the controller module with other modules or devices, you must first make sure that the controller module power supply is not connected. Modules and devices must be connected to each other with care. It is important not to use excessive force, wrong handling may damage the module. For programming and to power with low currency (less than 500mA) you must only connect the controller module with a PC using an USB port. If you are using modules that need to use a greater current than 500 mA, you must use a separate power source. If a controller module is connected to a separate power source, then the module automatically does not use USB a power supply.
-[{{:kit:kit_2561_test.jpg?580|Controller module connected to power supply and programmer}}]
+[{{:kit:atmega2561_connected.jpg?580|Controller module connected to power supply and programmer}}]

en/hardware/homelab/controller/atmega2561.1319220448.txt.gz · Last modified: 2020/07/20 12:00 (external edit)