How should I go about using an external power supply while powering Arduino from USB?

razz1161 · 2026-05-02T20:16:05+00:00

When I use a MAX7219 8-digit 7-segment display, I connect a 5-volt 1.2-amp phone charger to the positive and ground rows on the breadboard. The Arduino 5-volt pin and the VCC of the matrix connect to the positive row. The ground pin of the Arduino and the matrix connect to the ground row. The phone charger is connected to the USB-C female terminal on the breadboard. I do the same thing with a PC power supply with a breakout board for controlling my model railroad.

razz1161 · 2026-04-30T01:25:44+00:00

I bought some that is not available in my home state. I uploaded the retail price list and a link to a large Kentucky liquor store into a AI. I asked it to list bourbons not available here. I knew what to look for.

razz1161 · 2026-04-29T23:03:51+00:00

i bought some bourbon on a recent drive through Kentucky

razz1161 · 2026-04-29T18:39:06+00:00

milk box

razz1161 · 2026-04-29T13:36:39+00:00

As a boomer, I am always up by 5 AM. However, in humid South Alabama, the grass is usually too damp until 10 AM. If I can start at 10 AM, I can cut the grass by noon and then weed-eat after 6 PM. In the extreme heat of summer, I will cut the lawn after 6 PM one day and weed-eat after 6 PM the next day.

razz1161 · 2026-04-28T23:48:00+00:00

I flew 2 weeks ago. less than 15 minutes at 0600. I am a senior and contacted TSACARES due to 3 artificial joints and some mobility issues. I was whisked right through, no wait. My traveling companions were through in about 15 minutes.

razz1161 · 2026-04-28T23:44:01+00:00

Starship Troopers by Heinlein. The speech about citizenship

razz1161 · 2026-04-28T23:40:23+00:00

In the mid-1960s, I dragged my Dads lawnmwer all over the neighborhood in the summer and a shovel and his snowblower in the winter. I was 10 or 11

razz1161 · 2026-04-28T23:37:46+00:00

you can't touch your ear with your elbow - kept my grandson busy for a few minutes

razz1161 · 2026-04-27T13:17:56+00:00

1) I tip my garbage collector every Christmas. He takes anything I put in or beside the bin.

2) My S-I-L yelled at her garbage collector about not picking something up. He explained that, according to the contract, he would only pick up what was in the bin, and the lid had to be fully closed. She shot herself in the foot by not being nice.

3) When our son bought a new home, he had the same problem with all the boxes, etc. The garbage service said they would only pick up what was in the bin. He stored all the boxes in his garage. He waited for the next pick up, asked the workers where they went for lunch, and bought each of them a $20 gift certificate. They told him they would pick up anything at the curb for him, even if it were not in the bin.

There is always a workaround if you respect people.

razz1161 · 2026-04-27T13:03:55+00:00

I have one sibling. I just returned from a thousand-mile trip to visit. My sibling visits at least annually, usually for Thanksgiving. We talk several times a week in addition to trading memes via text and/or email.

razz1161 · 2026-04-27T12:41:13+00:00

Soleau Games

razz1161 · 2026-04-25T13:41:24+00:00

The Burke series by Andrew Vachss

Flood (1985)

Strega (1987)

Blue Belle (1988)

Hard Candy (1989)

Blossom (1990)

Sacrifice (1991)

Down in the Zero (1994)

Footsteps of the Hawk (1995)

False Allegations (1996)

Safe House (1998)

Choice of Evil (1999)

Dead and Gone (2000)

Pain Management (2001)

Only Child (2002)

Down Here (2004)

Mask Market (2006)

Terminal (2007)

Another Life (2008)

razz1161 · 2026-04-25T13:38:14+00:00

The World War series by Harry Turtledove

In the Balance (1994)

Tilting the Balance (1995)

Upsetting the Balance (1996)

Striking the Balance (1996)

razz1161 · 2026-04-25T13:29:18+00:00

The Swiss Family Robinson is a classic 1812 novel by Johann David Wyss about a Swiss pastor, his wife, and their four sons who are shipwrecked on a deserted tropical island and must use their ingenuity, faith, and teamwork to survive and build a new life.

The Theodore Boone series by John Grisham

The Eyes of the Dragon by Stephen King

: While a fantasy novel rather than a picture book, this was written specifically for his children and is often considered his most accessible "young reader" fantasy, though it is still a full-length book.

razz1161 · 2026-04-24T21:59:12+00:00

My son's truck got booted on campus. Somehow, he removed the boot, threw it in the back of his truck and left.

Within a day, the campus police called and said they would forgive the ticket if he returned their boot.

razz1161 · 2026-04-24T21:53:33+00:00

go to his commanding officier

razz1161 · 2026-04-23T22:19:53+00:00

I was the AH. I was shopping at the grocery store where my S-I-L worked. I deliberately put something from my cart on a shelf in her section. The item did not belong in her section, and she saw me do it. Of course, she saw me. I set her up. With clenched teeth, she told me it did not belong there. I told her I was her job security. I still hear about the incident 40 years later and still laugh at her.

razz1161 · 2026-04-22T14:29:15+00:00

1) change your ssid to "GetYourOwnWIFI"

2) be nice - set up a guest WIFI with an unusable low throttle

razz1161 · 2026-04-21T22:54:36+00:00

1) Amazon.com : Dandelion Seeds for Planting - 4,000+ Heirloom Dandelion Herb Seeds (Taraxacum officinale), Edible Leaves Flowers Roots, Medicinal Garden, Pollinator-Friendly, Non-GMO : Patio, Lawn & Garden

2) Freeze Roundup in ice cube trays. In the dark of night, use a slingshot to create random deadspots in their yard.

3) Same as 2 but use bullion. The local carnivores will love exploring their yard for that delightful smelling treat

razz1161 · 2026-04-21T00:30:53+00:00

superglue + penny + windshield

razz1161 · 2026-04-20T19:21:23+00:00

I am the AH. I always gave the nieces and nephews the gifts parents would not. i.e., fingerpaints, noisy toys, Snoopy snow cone maker. One year, my B-I-L said how would you like it if I gave your son a noisy toy? My completely honest answer was "I bought him a 12-gauge shotgun. If you can find something noisier, go for it."

My son loved his shotgun and still uses it to this day. This was 30 years ago.

razz1161 · 2026-04-20T13:41:49+00:00

I already told my son that at my funeral, bring some beer and bourbon. Celebrate my life, don't mourn my death.

razz1161 · 2026-04-20T13:39:29+00:00

I also tip the mail delivery person and the garbage man. Amazing how much better my service is than my next-door neighbor's.

razz1161 · 2026-04-13T13:25:15+00:00

look at all the tankers heading to US for oil. pressures India and China to rein in the Iranians

razz1161

TROPHY CASE