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ToolkitRC M6 Smart Charger

Another use of it would be looking to see what the range of the signal pulse width is for a particular radio system. The accept input range of a servo is 1 -2ms. Some radios are spot on and others vary below and above that standard. Beili radio systems seem to be 20% under spec, modified out of factory to reduce the EP to suit there sheeting arrangement. Very apparent if you replace there system with another and you get all this extra sheet on deck.

In 99% of cases I would not use it but I have one yacht that took a bit of time to set the End Points. They are trimmed right down as it has been re sheeted as double haul. I want to replace the radio system with another and don't want to go through all the set up again.

The only way I can see to do this is take a reading of the pulse width signal coming out of the Rx and adjusting the new Tx EP's to give the same reading on the new Rx. As the servos stay the same it should in theory be the same travel as the initial set up.

You cant use the % settings shown on the Tx display as in my experience what is 80% on a Turnigy is not 80% on a Futaba.

No matter what the radio system the servo needs a defined pulse width signal for a certain position.

Trust you to polish the button. yet again. 

 

However, what do you mean by

"My use apart from testing will be transferring pulse settings to a new radio systems"  ?/   ❓

Nothing like a new gadget to amuse me. Even better if they are somewhat useful.

Should have done this test before I did initial post. Pretty accurate and definitely good enough for field tests.

My use apart from testing will be transferring pulse settings to a new radio systems. Will do that fine and for just about everyone very accurate to their needs.

For the cost I am happy so far.

Probably it is no news to most of us but if you have a lithium battery, LiPo of LiFe that has been left on too long so that the smartcharger which chuck a wobbly and say something like "insufficient/low voltage and will refuse to have anything to do with it.

to satisfy the whinger you need to add current via the power lead only (don't connect the balance lead) after setting the charger to a PB setting that is close to the nominal capacity charge rate of the battery being processed. I don't know if there is any chance of it overcharging as I always make sure that I keep an eye on it as it works its way up from a few volts to that which is standard.

 

Usually it will recover the fully battery (check with a recycle of two) but sometimes it will only hold a lower capacity after charging. at worst it is well and truly stuffed.

You must  be known as Gadget Man, but at least you use them.

My main device is the blue aluminium cased servo tester from HK. The blue is nearly worn off it. If any of my buds show interest I sell them the El Cheepo version which is the board covered by a glossy cardboard cover. good enough and does the job. The only other measuring device I use often is the smart charger set on cycle,  if the chemistry doesn't permit that function, discharge followed later by charge.

A few months ago my buy finger was feeling very neglected when up popped a email from Banggood . Have been ignoring these daily emails but there was mini charger listed for $40 which got my attention.

It was your normal multi battery charger/discharger, balance for Pi but also had a USB charge socket, servo test output and a RX signal test function. Now going back to when I went on holidays last and I had Rx problems it would have made diagnostics a lot easier. Substituting can sometimes mean both Rx’s are dead depending on the fault.

Of course the problem with this type of device is that if one function fails it could mean the whole unit is dead. Buying separate units to do all those tasks alleviates that problem but probably more cost and space.

Anyway the buy finger got a bit of exercise and so far it has done all I have asked. Charged/Discharged batteries, charged my phone and tested an Rx. So at the moment happy with it.

Easy to use, low cost and small footprint.

I power it using a spare 18V laptop power brick, the same as I use for the ISDT. Both chargers will run off the PS at the same time for the battery capacities I have. Nominal 2.5A charge.

Testing an Rx output.

The graph display is more pictorial than a measuring tool but does show the change in signal over the RX range. The text is the main data required.

Found another couple of test tools so will report on them when I get them.

Today this popped up on my recommended YT videos to watch. Very simple circuit that could be built out of the scrap box but then again the basic servo testers are very cheap.

https://www.youtube.com/watch?v=sEEMS3oNzV8&t=0s