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Pololu Flammable Gas & Smoke Sensor MQ-2
TS-056-MQ2

This semiconductor gas sensor detects the presence of combustible gas and smoke at concentrations from 300 to 10,000 ppm. The sensor's simple analog voltage interface requires only one analog input pin from your microcontroller.

$3.95
6 Ready to Ship!
Interstate 12 Volt 18 Ah Sealed Lead Acid Battery (SLA)
TE-177-018

Interstate 12 Volt 18 Ah Sealed Lead Acid Battery (SLA). Nut and Bolt Fastener Lug.

$99.99  $47.80
7 Ready to Ship!
SuperDroid Robots - TTL Relay High Current Drivers
Category
Electrical/Controls  >  Discrete Components   >  High Current Drivers

High Current Drivers

These are a must for driving any circuit over 20mA. The GPIO outputs from an Arduino, Raspberry Pi, or Beagle Bone do not have the capacity to drive much more than an LED. These boards allow you to easily drive higher current devices. It will drive up to 50V and 2 watts of power (1 watt per channel, but the channels can be paralleled for over 1 watt). The circuit can handle about 500mA continuously. The circuit also has inductive load transient suppression which occurs when driving such things as coils on relays.

All our high current drivers have 7 channels. All but the basic assembled board and one relay board have status LEDs which will light with a TTL (+5VDC) logic input. The boards that have relays are rated at 10A@120VAC. An external power source is plugged into the board that drives the loads. If you use the relays, then the supply needs to be either 5VDC or 12VDC. The 5VDC coils will draw about 60mA each.  The 12VDC coils will draw about 37mA each.

If you want screw terminals as pictured, you can select that addition, else you can solder your wires right into the holes on the PCB.


The answers to the most common questions we get can be found on our support pages.

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4 Relay, 7 Channel High Curr TTL Driver Module
This is a High current driver that will take TTL signals from your Arduino, etc to drive the relays. It includes status LEDs for each input. 5V, 12V, and 24V relay options are available. This item replaces TE-010-405 and TE-010-412
TE-249-040
$28.95
25 Ready to Ship!
7 Channel Relay Module
Powered by the ULN2003 high current driver, this module gives you easy control of up to 7 relays using TTL logic from an Arduino, Beagle Bone, or Raspberry Pi. 5V, 12V, and 24V relay options.
TE-249-070
$34.12
Out of Stock. Contact us for availability.
ULN2003APG High Current Driver
The ULN2003APG High Current Driver has 7 NPN Darlington arrays in a 16-SOIC package. This is perfect when you need to use a microcontroller to toggle a relay or control high power LEDs.
TE-235-203
$1.94
48 Ready to Ship!
7 Channel High Current TTL Driver - SMD
This is the SMD version of our popular 7 channel high current driver based on the ULN2003. The driver takes a 5V TTL signal from your Arduino, Raspberry Pi, Beagle Bone, etc and drives higher current devices up to 50 VDC
TE-010-800
$7.99
20 Ready to Ship!
DPDT and SPDT Relay with TTL Driver
This is a Relay circuit driven by TTL singles. A DPDT and SPDT relay are connected to allow you to drive a load in forward/off/reverse.
TE-010-502
$24.90
17 Ready to Ship!
7 Channel High Current TTL Driver
This is a High current driver that will take the 5V TTL signal from your Arduino, etc and drive higher current devices @ 0-50 VDC
TE-010-000
$8.95
8 Ready to Ship!
High Current and Relay driver boards driven by 5V TTL signals
SDR Tactical Robots

Looking for our Tactical Robots? We've created a new, dedicated website to better serve our customers. Please click the image below to visit the new SDRTactical.com!

Custom Robot Request

We specialize in designing and fabricating custom robots and other electro-mechanical devices.

You can also get a quote for custom mechanical, software, and electronics engineering services. We can also do your custom CNC work, general fabrication, and welding.

1-919-557-9162

New Items
USED LT2 Pair of Tracks - Generation 3A
U-084-000

This is a complete set LT2 tracks. They have been used but have plenty of tread left. They will work with LT2 or LT2-F. These generation 3 tracks are a more aggressive pattern than the standard LT2 tracks.

$499.00  $290.00
Out of Stock. Contact us for availability.
Automatic 24V 4A Three Stage Battery Charger
TE-258-024

This Charger is designed for charging a 24V lead acid battery with 4A current. The charger will work with 2 12V batteries run in series.

$36.94
7 Ready to Ship!
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