"Mr. Fletcher and Mr. Black,
I am very disappointed to see someone as intelligent as you both are, jump to immediate and inaccurate conclusions, without bothering to stop and ask any questions, or get any of the facts. If you had taken the time to…"
WhiteQueen's Discussions
Almost there...
Started this discussion. Last reply by Gary Mortimer May 9, 2010. 1 Reply 0 Likes
Loaded 2.6 and started tweaking...Continue
Xbees and Cross Polarization
Started Mar 4, 2010 0 Replies 0 Likes
I have 4x 50mw Xbee 900 Mhz modules(XBee Pro 900 RPSMA), 2 in the UAV and 2 in the base station. Each pair of xbees…Continue
ArduPilot Voltage connection
Started this discussion. Last reply by Patrick May 15, 2010. 7 Replies 0 Likes
In the instructions, it says I need to connect the battery directly to the spot indicated to allow battery voltage to be transmitted back to the ardustation.I would like someone to confirm that…Continue
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Latest Activity
Patrick replied to WhiteQueen's discussion ArduPilot Voltage connection"Not sure, but my guess would be to fiddle with the "0.000294117" value (some kind of correction / scaling value).
Note that 1/0.000294117 = 3400 (see the magical 3.4 value?)
If we replace that value with 0.000178571 , you should get the…"
WhiteQueen replied to WhiteQueen's discussion ArduPilot Voltage connection"Just to follow up and ask an additional question.
I am adding a 220k ohm resistor in line with the power going into the voltage connection on the ardushield.
This gives me (220 + 240 + 100)/1000=5.6
25 / 5.6 = 4.464285714285714 which is well…"
ModeratorGary Mortimer replied to WhiteQueen's discussion Almost there...
"Thats a Flogger!!! Sweet."
WhiteQueen replied to WhiteQueen's discussion ArduPilot Voltage connection"Good catch, I'm an idiot. You are of course correct with the 6S voltage being 22-25 volts.
I've been working with so many voltages over the last couple of weeks, picking motors/batteries/speed controller combinations, etc I got my wires…"
DeveloperMark Colwell replied to WhiteQueen's discussion ArduPilot Voltage connection
"Most 6s lipo battery pack voltage is 22.2 dc and with full charge 25.2v dc. You may have 4 cell lipo or a defective 6 cell pack! You should measure voltage after full charge to be sure of highest applied voltage and design resistor voltage divider…"
WhiteQueen replied to WhiteQueen's discussion ArduPilot Voltage connection"The 18.2 volts is from a 6s Lipo Pack powering my ESC. Monitoring the 5 volts from the ESC to power my RX, does not help, as by the time the 5 volts starts to drop the 18.2 will have fallen well below useable range for the motor.
I would like to…"
Dale replied to WhiteQueen's discussion ArduPilot Voltage connection"check the schematic for the shield. there is a voltage divider with a 240 and 100k resistors. so the voltage input from the pack is divided by 3.4 ( 240+100 / 100 ) and the resulting signal goes to the arduino input. you wouldn't want the…"
WhiteQueen posted a discussionXbees and Cross Polarization
I have 4x 50mw Xbee 900 Mhz modules(XBee Pro 900 RPSMA), 2 in the UAV and 2 in the base station. Each pair of xbees will have a different PAN ID.I am concerned that the transmit side of one Xbee will flood the rx side of the other Xbee, due to the close proximity of the antennas. What should be the minimum distance between antennas, and should I cross polarize the antennas(one horizontal, one vertical), or is this…See More
WhiteQueen replied to WhiteQueen's discussion ArduPilot Voltage connection"Let me correct my question.
It is the ArduShield that has the voltage monitor connection. Can someone confirm that 18.2 volts will work fine, and not fry the circuit?"
WhiteQueen posted a discussionArduPilot Voltage connection
In the instructions, it says I need to connect the battery directly to the spot indicated to allow battery voltage to be transmitted back to the ardustation.I would like someone to confirm that connecting an 18.2 volt lipo batttery directly to this location, will not let out all the magic smoke.See More
WhiteQueen replied to Toby Stein's discussion ArduStation Power Supply"Then that is exactly what I shall do. I will connect the 5v regulated power supply directly to the V+ pin on the ArduStation, and celebrate as I bask in the warming glow of blinking LEDs."
WhiteQueen replied to Toby Stein's discussion ArduStation Power Supply"The case is all ready vented, as we are using a small computer powersupply w/ fan to circulate air though the case.
However your note about adding a heatsink to help dissipate is duely noted.
Will the ArduStation run on a simple 5v input? PC Power…"
WhiteQueen replied to Toby Stein's discussion ArduStation Power Supply"Thank you very much for you expedient and informational reply. It was the exact type of answer I was looking for, but unable to find anywhere."
WhiteQueen replied to Toby Stein's discussion ArduStation Power Supply"I have read the ArduStation build instructions and the description on the store. I understand I CAN power it with a 2 or 3 cell LIPO battery. Can I get a standard voltage requirement for this unit? I would like to be able to power it using a…"
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