Adafruit Daily

Electronics

2024

July

24

Protect your multimeter!

17

Multimeter Peaks

10

Multimeter Bandwidth – AC Signal

03

Keep track of those rails!

June

26

Soldering Pointer!

19

LED Basics!

12

Tactile Confusion?

05

Desolder with… more solder!

May

29

The advantage of ‘Rail to rail’ op amps!

22

When is a via not a via?

15

If you don’t ask, you won’t receive.

08

Steady Headers

01

Sizzlin’ Chip Test

April

24

The Case Of The Disappearing Capacitance

17

Build It!

10

Probe Currents!

03

Simulate It!

March

27

The Glitchy Switch

20

Footprint Fail!

13

Free Heatsink!

06

USB Powered Mayhem!

February

28

Is your op amp going crazy?

21

Electrolytic Limitations

14

To Y5V or not to Y5V?

07

Have you met Charlie?

January

31

Inadequate volt signal

24

Diode-less MOSFET?

17

My MOSFET has parasites!?

10

1 Wire Woes

03

Beware expanding LiPos!

2023

December

27

Tricky Diode Vf

20

Diode Vf vs Voltage

13

Free ICs!

06

To shield or not to shield?

November

29

What the mF?!

22

Logic Analyzers On The Cheap

15

Print your PCB!

08

Design for test!

01

1k1? 4R7? Whaaa?

October

25

Never Get Lazy With Decoupling Capacitors

18

Spit in your eye

11

Proceed with caution

04

Linear Love

September

27

Trouble with LM741

20

Turn the heat up! when unleaded

13

The deets on Electret Microphones

06

Through Hole SMD

August

30

Switch Mode Power

23

Can’t afford a current probe?

16

Nasty fumes

09

Calc that whip!

02

Lead-free Soldering Temperature

July

26

Connect your grounds!

19

Transformers: More than meets the eye!

12

Motor interference

05

Higher isn’t always better

June

28

Stay disciplined with ERC

21

It sure is crowded in here.

14

Watch the gate voltage!

07

Meaningful gains

May

31

Capacitor ESR

24

Potentiometer conventions

17

N vs P!

10

Ground connections cooler via more vias

03

LED colors: what they tell you

April

26

Look to ferrites (no, not ferrets, the European polecat) when faced with high frequency

19

DRC Confusion

12

Lazy Libraries

05

Resistors are inductors?!

March

29

Copper keepout!

22

Audio amplifier advice

15

Lost signal? Have no fear!

08

You’ve got the power! (right?)

01

This tip’s a real circuit slugger

February

22

The 411 on 555s

15

Stay current with sourcing and sinking

08

Code like everyone’s watching

01

Shift away from basic arithmetic

January

25

Check out this shorthand shortcut

18

Keep this in mind when working on project layout

11

Working with sensitive circuits?

04

Diamonds may be forever… but components? Not so much.

2022

December

28

Must read MOSFET material

21

Cool your FETs!

14

What’s in a diode?

07

Have the need for speed? This diode might be right for you

November

30

Storage Safety 101

23

Solder braid quick fix

16

Let us clear up your aluminum confusion

09

Voltage drop from cables

02

Zener voltage

October

26

Fuse Safety

19

Dream big, start small

12

Hi-res mode for the (detailed) win!

05

Avoid serial confusion!

September

28

= != ==.

21

When to opt for alkaline batteries

14

How to make your LiPo long-lasting

07

Emergency ferrite

August

31

1, 2, 3, Freeze!

24

Help yourself with helping hands

17

Signature required?

10

Current limiting!

03

Solder isn’t everything.

July

27

Schottky power!

20

Electrical Tape and PVC Glue to the Rescue!

13

Relieve Strain with Hot Glue

06

Capacitor Polarity Markers

June

29

Damp Sponge vs Drenched Sponge

22

Straw Diffusers

15

Twist-tie Jumpers

08

Paper Clip Power Supply

01

Staple Jumpers

May

25

Don’t resist – organize those resistors!

18

Breadboarding Wire

11

Vias in pad?

04

How the resistor got its stripes

April

27

Rule of thumb: At least one via per amp.

20

 Interference is everywhere!

13

Clarify your supply

06

Coin Cell Current

March

30

Why do they call it a breadboard?

23

Rule of thumb: 10mils per amp.

16

Pseudodifferential Measurement

09

With SMT, start big …

02

TO-220 Tip

February

23

Any USB port in a storm?

16

Serial overkill

09

Static kills… slowly.

02

Don’t blow it with your microcontroller

January

26

Your job’s a joke, you’re broke, your semiconductor is DOA

19

How to make your own magnetic field probe!

12

High voltage logic

05

Lithium chemistries

2021

December

22

A short lesson in RF protection

15

A way around surface mount snags

08

A few words on inductor resistance

01

Probes aren’t perfect!

November

24

Invisible Bugs

17

Designing a PCB?

10

Don’t float!

03

Blown transistor?

October

27

Breadboard Capacitance

20

Get Oriented!

13

Counting Pin Numbers

06

Long live labels!

September

29

LED overload? Psst. I’ll let you in on a secret.

22

Optimize your op amp

15

Current limiting!

08

Behold…the power of pseudocode.

01

Very int-eresting: Integral Integer Info

August

25

We wouldn’t snub this note on snubbers

18

Here’s the low-down on inductive loads

11

Watch your micro!

04

Here’s the deal with BJT power

July

28

Hummm… 60Hz noise in your amplifier driving you nuts?

21

Get the scoop on crystal capacitors

14

Even lower power!

07

Test for interference on the cheap!

June

30

Function Generator Marketing

23

Oscilloscope Bandwidth

16

Disable unused channels!