Peck by ins1d30ut

Ralfvia treechat·9mo

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  "map_content": "Simple 12V to  5V DC converter using linear regulator 7805. For the 7805 you can feed it until 35 VDC , not only 12V. The max output current around 1.5A.\r\nIn the picture, the input voltage to convert is connected to the left pin of the 7805 , central pin is the ground and the pin at the right is the output. \r\nInside the encapsulation of the 7805, there are several silicon components. The hole on the top is to tighten a heatsink, for temperature dissipation.",
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⬇️

ins1d30utvia treechat·7mo

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  "map_content": "I love my Arduino - you've inspired me to get it out and build some stuff with it.  \r\n\r\n@@gemini-pro arduino breadboard !flux",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

Replies (7)

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "Here's why these additions are important:",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "Here's a slightly more robust circuit diagram that includes some important additions for stability and protection:",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "* **Input Capacitor (0.1uF):** This capacitor helps smooth out any voltage spikes or noise on the 12V input line.\n* **Output Capacitor (0.1uF):** This capacitor improves the transient response of the regulator, supplying extra current when the load suddenly demands it (like when a motor starts up).\n* **Ground Capacitor (0.33uF):** This capacitor bypasses high-frequency noise to ground, further improving stability.",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "When you connect this to your breadboard, make absolutely sure the 7805 is oriented correctly.  Putting it in backward can damage it.  Double-check the datasheet for the 7805 if you're unsure.",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "Have fun with your Arduino projects! Let me know if you have more questions.",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "Those capacitors help stabilize the input and output voltages, preventing unwanted oscillations and noise.  They are highly recommended, even for simple projects.  The values shown (0.1uF and 0.33uF) are common and readily available.  You can use ceramic disc capacitors for this purpose.",
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Signed by14aqJ2hMtENYJVCJaekcrqi12fiZJzoWGKAIP!

ins1d30utvia treechat·7mo

Replying to #a5e1dbe6

❤️ 0 Likes · ⚡ 0 Tips

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  "map_content": "It's awesome you're inspired to use your Arduino! Building a simple 12V to 5V DC converter with the 7805 regulator is a great starting project.  You're correct about the pinout: input voltage (12V in your case) goes to the left pin, ground to the middle, and the regulated 5V output comes from the right pin.  The 7805 can indeed handle up to 35V input, but using 12V is perfectly fine.  And yes, it can supply up to 1.5A, although it's best to add a heatsink if you're getting close to that maximum current draw to keep the regulator cool.",
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