Difference between revisions of "Lia"

From PaparazziUAV
Jump to: navigation, search
(Created page with "'''Lia''' is a lower cost stripped down version of Lisa/M. == Differences to Lisa/M == * 0.1" pitch connectors instead of molex picoblade * No CAN transceiver (footprint st…")
 
m (Differences from Lisa/M)
 
(8 intermediate revisions by 5 users not shown)
Line 1: Line 1:
'''Lia''' is a lower cost stripped down version of [[Lisa/M]].
+
'''Lia''' is a lower cost version of [[Lisa/M]] first developed for inclusion with the [http://wiki.thequadshot.com/wiki/The_Mocha Quadshot Mocha].
  
== Differences to Lisa/M ==
+
== Differences from Lisa/M ==
  
* 0.1" pitch connectors instead of molex picoblade
+
* 0.1" pitch through-holes instead of molex picoblade
* No CAN transceiver (footprint still present just not populated)
+
* No CAN transceiver (footprint still present just not populated) on [http://www.transition-robotics.com Transition Robotics]serial numbers LI1-001 through LI1-200 (populated on serial numbers ≥LI1-201)
 
* No I2C2 level shifter (footprint still present just not populated)
 
* No I2C2 level shifter (footprint still present just not populated)
 
* No 5V voltage regulator (footprint still present just not populated)
 
* No 5V voltage regulator (footprint still present just not populated)
 +
* No JTAG connector (footprint still present just not populated)
 
* Added servo power inline resistors (by default 0 ohm but can be changed to higher value for balancing the linear voltage regulators of the motor controllers)
 
* Added servo power inline resistors (by default 0 ohm but can be changed to higher value for balancing the linear voltage regulators of the motor controllers)
  
Line 16: Line 17:
 
Image:Lia_1.1_aspirin_bottom.jpg|Lia V1.1 bottom side with Aspirin 2.1 nomag nobaro placed.
 
Image:Lia_1.1_aspirin_bottom.jpg|Lia V1.1 bottom side with Aspirin 2.1 nomag nobaro placed.
 
</gallery>
 
</gallery>
 +
 +
== Jumper Configuration ==
 +
There are a number of jumpers on Lia used to configure voltage levels and power input. Their locations and functions are identical to those on the Lisa/M v2.0.<br/>
 +
See the [[Lisa/M_v2.0#Jumper_Configuration|Jumper Configuration section on the Lisa/M v2.0 page]].
 +
 +
Note that the default states of JP8 and JP9 are reversed with respect to the defaults of Lisa/M v2.0; that is:
 +
 +
{|border="1"  cellspacing="0" style="text-align:center" cellpadding="2%" width="70%"
 +
|+'''Lia UART1 and UART5 VCC Configuration'''
 +
!width="7%"|''Jumper''!!width="20%"|''Bus Connection''!!width="7%"|''Default''!!''Description''
 +
|-
 +
|JP8||UART1&5_VCC to V_IN||style="background:black; color:white"|CLOSED||Connects UART1 and UART5 connector VCC to autopilot input voltage V_IN rail
 +
|-
 +
|JP9||UART1&5_VCC to +3V3||OPEN||Connects UART1 and UART5 connector VCC to autopilot +3V3 rail
 +
|}
 +
'''WARNING: DO NOT CLOSE BOTH JP8 AND JP9 SIMULTANEOUSLY!!!'''
 +
 +
[[Category:Lisa]]

Latest revision as of 11:32, 21 November 2013

Lia is a lower cost version of Lisa/M first developed for inclusion with the Quadshot Mocha.

Differences from Lisa/M

  • 0.1" pitch through-holes instead of molex picoblade
  • No CAN transceiver (footprint still present just not populated) on Transition Roboticsserial numbers LI1-001 through LI1-200 (populated on serial numbers ≥LI1-201)
  • No I2C2 level shifter (footprint still present just not populated)
  • No 5V voltage regulator (footprint still present just not populated)
  • No JTAG connector (footprint still present just not populated)
  • Added servo power inline resistors (by default 0 ohm but can be changed to higher value for balancing the linear voltage regulators of the motor controllers)

Pictures

Jumper Configuration

There are a number of jumpers on Lia used to configure voltage levels and power input. Their locations and functions are identical to those on the Lisa/M v2.0.
See the Jumper Configuration section on the Lisa/M v2.0 page.

Note that the default states of JP8 and JP9 are reversed with respect to the defaults of Lisa/M v2.0; that is:

Lia UART1 and UART5 VCC Configuration
Jumper Bus Connection Default Description
JP8 UART1&5_VCC to V_IN CLOSED Connects UART1 and UART5 connector VCC to autopilot input voltage V_IN rail
JP9 UART1&5_VCC to +3V3 OPEN Connects UART1 and UART5 connector VCC to autopilot +3V3 rail

WARNING: DO NOT CLOSE BOTH JP8 AND JP9 SIMULTANEOUSLY!!!