has this been tested with POE hats or any other existing hats?

I originally installed a 3 relay contactor hat, but quickly grew out of that. I had to upgrade the power supply (Mean Well MDR-60-5) to 60 watts which powers the Pi (bypassing the micro USB port), 16 relay contactors (not all used), 8 sensors, and 4 3.3v step down regulators. The Pi is not a very good power source, especially 3.3v. All the gear is mounted on C45 DIN rails to avoid breadboards. All wire junctions are screw down like the this hat. Also the LEDs were very helpful in debugging. The code and it's relationship to the GPIO is quite complex. Latency and hysteresis were an ongoing challenge. I wouldn't cover the LEDs with another hat.

According to diagram, the posts appear to be one way (diode) from the gpio head. can i send signal back to the pi from this breakout?

The diode is a led. Set the GPIO pin of your choice to output and the led will show the state of the output of that GPIO pin. Set the GPIO pin of your choice to input and the led will show the state of whatever is input to that GPIO pin.

What are the length and width of the connector that fits onto the 40-pin header? I want to see if it will fit through the slot in the top of my case.

This is not the answer I was looking for. I would like to see if I can use this breakout box with the cover installed on my Raspberry Pi case. It has a slot 55 mm long X 8 mm wide. Will the header connector fit through this slot?

Will it work with Pi Zero W?

Yes, the item can support Pi Zero W, But only two screw holes can be fixed.

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RPi GPIO Status LED & Terminal Block Breakout Board HAT for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B

RPi GPIO Status LED & Terminal Block Breakout Board HAT for Raspberry Pi A+ 3A+ B+ 2B 3B 3B+ 4B

Product ID: 384231630

Details

Brand
HCDC
Colour
blue red
Connector type
Screw
Current rating
3 Amps
Gauge
26.0
Item pitch
0.14 inches

🔴3.3V power LED indicator

🔵5V power LED indicator

🟢GPIO status LEDs

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Description

💡 Light up your Pi projects with precision and style!

INSTANT GPIO INSIGHT - One-to-one LED mapping with Raspberry Pi pins for real-time logic level monitoring.
ULTRA LOW POWER LE DS - Each LED draws only 0.1mA, ensuring zero interference with GPIO signals.
COMPLETE MOUNTING KIT - Includes nylon standoffs and nuts for easy, stable PCB mounting—no extra parts needed.
ROBUST TERMINAL BLOCK - 3.5mm pitch supports 26-16 AWG wires with durable M2 steel screws for secure connections.
UNIVERSAL PI COMPATIBILITY - Seamlessly supports Raspberry Pi A+, 3A+, B+, 2B, 3B, 3B+, and 4B models.

This fully assembled GPIO Status LED & Terminal Block Breakout Board HAT offers intuitive, real-time visual feedback of Raspberry Pi GPIO logic levels with color-coded LEDs (5V blue, 3.3V red, GPIO green). Designed for ultra-low power consumption (0.1mA per LED), it ensures accurate signal monitoring without interference. Compatible with a wide range of Raspberry Pi models, it features a robust 3.5mm pitch terminal block supporting 26-16 AWG wires and comes with a complete mounting kit for hassle-free installation.

Specifications

ASIN	B08RDYDG6X
Brand	HCDC
Colour	blue, red
Connector Type	Screw
Current Rating	3 Amps
Customer Reviews	4.8 4.8 out of 5 stars (320)
Gauge	26.0
Manufacturer	Xiken Electronic Technology Co., Ltd.
Manufacturer Part Number	HD040
Material	Alloy Steel, Copper, Nylon
Model Number	HD040
Mounting Type	PCB Mount
Number Of Contacts	40
Number Of Poles	40
Number of Items	1
Number of Positions	40
Pitch	0.14 inches
Voltage	3.3 Volts

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€ 64.63

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In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

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TrustScore 4.5 | 7,300+ reviews

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