Our controllers have rock stable output, no jitter at all.
No complicated setup, basically the board is plug and play. Easy to use screw terminals, just add power supply.
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| Northlight's RC servo controllers will receive DMX512 digital protocol for Stage lighting products and controls 8 RC hobby servos. Our controllers have rock stable output, no jitter at all. No complicated setup, basically the board is plug and play. Easy to use screw terminals, just add power supply. |
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| Address switch options There are 2 options shown below. Select a switch type when ordering.
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| Mini DIP Switch
The Mini DIP switch is mounted on the circuit board.
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OLED address switch with LED Use this when address switch is mounted on an enclosure panel. Includes powder coated, alminum mounting plate. Includes LED and connecting lead. The address is direct enter using standard UP and DOWN buttons.  |
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If you don't have a PayPal account, or don't want one, no problem. Send an email to info@NorthlightDMX.com with your order and we will send a PayPal invoice. A PayPal invoice is an email from PayPal with a link back to PayPal to enter your credit card info. Click in the "Contact" button for warranty info. |
| If you need a power supply or plastic enclosure, click on the Accessories button. |
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If PayPal over charges for shipping we will refund the over payment.
We only charge for actual cost of shipping. |
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8 Channel RC servo controller - New firmware..
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| SRV08M -- 8 Channel servo controller with on board address switch.
To Purchase: enter quantity, then click "add to cart".
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SRV08P -- 8 Channel servo controller with panel mount OLED address switch.
To Purchase: enter quantity, then click "add to cart".
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SRV16 -- 16 Channel servo controller with 4 PWM channels and 2 relay driver channels. Download the manual in PDF format. |
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| SRV16M - 16 channel servo controller with on board address switch.
To Purchase: enter quantity, then click "add to cart".
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SRV16MP -- 16 Channel servo controller with panel mount address switch.
To Purchase: enter quantity, choose shipping, then click "add to cart".
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SRVRLY2-- 2 - 10 Amp, 120 Volt relays for use with SRV16 controller.
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To Purchase: enter quantity,then click "add to cart".
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MEAN WELL S-25-5 , 5 Volt 5 Amp power supply.
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| MWS255 - $12.00
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8 BIT DMX vs 16(12) BIT DMX
8 bit DMX is a single DMX channel that will produce 256 (0-255) discrete pulse widths.
In 16 bit DMX , 2 channels are used, they are linked together to form a 16 bit “word”.
The first channel is the “coarse” adjustment and the second channel is the “fine” adjustment.
This is not the same as two adjacent channels where they are acting independently.
The SRV08 uses the coarse and fine sequentially.
Servo 1 will use DMX channel 1(coarse) and channel 2(fine), and so on.
This may require a "profile" in some software.
For example, assume that you are moving the servo from zero to 90°.
At the beginning, both the coarse and fine channels are at 0. As you start the move, the fine channel increments from 0-255. When the fine channel reaches 255, it resets to zero and the coarse channel increments from 0 to 1. The process then repeats, incrementing the coarse channel until the first 4 bits of the coarse channel are set.
The SRV08 uses 12 bits. This gives the servo a total of 4096 possible pulse widths, resulting in much more precise control. The advantage of 12-bit resolution is the smoothness of the movement and precise placement.
To get full resolution with 4096 steps requires a quality servo and tight linkage.
If you are trying to sweep 90°, that would be .021° per step. That is not that easy to even measure. Any slop/backlash in the internal gears of the servo or external linkage might appear to be a missed step or inconsistent movement.
A cheapo analog servo might not resolve such fine steps.
Analog servos have what is called a 'deadband'. This is the amount of variation in the pulse width that has to occur before a change in position. If the deadband is made too narrow, the servo would oscillate due to noise and consume more power than required. If the deadband is too wide the servo will not be as sensitive to changes in the pulse width.
According to HiTec , standard (Analog) servos have a deadband of around 8us and high performance servos have a deadband of 1~3us.
The point is that 'analog' servos have a finite resolution.
A 'digital' servo will also have a deadband that will limit its ultimate resolution, however many can be set to very low or 0 deadband.
Shipping
Express worldwide in the USA is next day(overnight).
Northlight offers Priority Mail and Express mail services.
Priority mail in the USA is usually 2nd day.
Priority mail to Canada take usually 3-5 days to Canadian customs. After that it is up to Canadian customs to process the package.
Express outside the USA is usually 3-5 days to the destination country. Then it goes to that countries customs and then their postal service.
We combine shipping. Click on your shipping choice only once per order.
If you overpay for shipping we will refund the difference from actual cost.
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