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Weevil Eye
Kit Information & Instructions
The Weevil Eye kit is an introductory electronics kit designed to help the novice electronics
enthusiast learn about things like soldering and resistance. The Weevil Eye is designed
to look like a little beetle whose eyes glow in accordance with the ambient light
level – the less light detected, the brighter the friendly weevil's eyes will glow. There is
no programming involved and all soldering is beginner friendly, so this kit is perfect for
the embedded electronics novice.
Kit includes:
• Weevil Eye PCB
• Red Diffused 5mm LEDs (qty 2)
• 47k Ohm Resistor
• 220 Ohm Resistors (qty 2)
WARNING:
Please wear safety goggles. This kit requires soldering and clipping leads.
• Transistor (2N3904)
• Miniature Photocell
• Coin Cell Battery Holder
• 20mm Coin Cell Battery
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Summary of Contents for sparkfun KIT-10723
- Page 1 Weevil Eye Kit Information & Instructions The Weevil Eye kit is an introductory electronics kit designed to help the novice electronics enthusiast learn about things like soldering and resistance. The Weevil Eye is designed to look like a little beetle whose eyes glow in accordance with the ambient light level –...
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Page 2: Soldering Tips
SOLDERING TIPS SOLDERING TIPS Solder flows around the leg and fills the hole - forming a volcano-shaped mound of solder. Error: Solder balls up on the leg, not connecting the leg to the metal ring. Solution: Add flux, then touch up with iron. Don’t: Use the very tip of the iron. - Page 3 Insert the resistor into the PCB. QUICKSTART - YOUR FIRST COMPONENT [ STEPS 1 T0 12 ] Locate the 47k Resistor. It will be color-coded with stripes — yellow, purple, then orange. Bend the legs downward. Push the resistor in so it is nearly flush with the board. Locate the 47k Resistor position on the board.
- Page 4 Flip the board over. Hold the soldering iron’s “sweet spot” so it Your solder joints should look like this - a tiny volcano. touches both the leg and the metal ring. Hold for two seconds. Solder the next leg into place. Feed solder into the joint.
- Page 5 CONTINUE WITH THE TOP OF THE BOARD [ STEPS 13 T0 16 ] Now that you’ve successfully soldered in the resistor, use the same method to place and solder the rest of the components. Steps highlighted with a yellow warning triangle represent a polarized component.
- Page 6 CONTINUE ON THE TOP OF THE BOARD Remember highlighted components are polarized. LEDs: Insert the LEDs into the front of the board. Each LED has a short leg and a long leg. The short leg goes into the hole labeled “ .” Also make sure it sits flush with the PCB. Then solder into place.
- Page 7 NOW WORK ON THE BOTTOM OF THE BOARD Remember highlighted components are polarized. Battery Clip: Turn the board over and align the battery clip with the white footprint on the Weevil Eye’s back. Make sure the legs stick through the board and that the part is laying flat. Solder the battery clip’s legs into place from the top of the board.
- Page 8 QUICK TEST INSTRUCTIONS Once the Weevil Eye is soldered, we can test the board’s functionality. • Put the 20mm coin cell battery into the battery holder, positive side up. • If it’s dark, you should see the LEDs light up. If not, cover the sensor with your finger to test.
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Page 9: Learning More
These little sensors make great ambient light triggers. © SparkFun Electronics, Inc. All Rights Reserved. The SparkFun Weevil Eye Kit features, specifications, system requirements, and availability are subject to change without notice. All other trademarks contained herein are the property of their... - Page 10 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: SparkFun Electronics KIT-10723...
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