Search found 790 matches

by andrew
Mon Sep 10, 2018 2:32 pm
Forum: WeMos
Topic: WeMos D1 Mini OLED Shield (HCWEMO0007)
Replies: 5
Views: 3385

Re: WeMos D1 Mini OLED Shield (HCWEMO0007)

I can confirm that it works with the new font file
Thanks, I'll get this library updated.
by andrew
Sun Sep 09, 2018 8:01 am
Forum: Altera
Topic: LC MAXII Altera EPM240 CPLD development board (HCDVBD0006)
Replies: 8
Views: 8206

Re: LC MAXII Altera EPM240 CPLD development board (HCDVBD0006)

Yes you are correct, it is a power switch. We do check every Altera board ourselves but its possible that the switch could been knocked in transit. Can you check that the white bezel is clipped onto the base properly, I believe there are two clips on opposite sides of the switch. Also I've seen on o...
by andrew
Thu Aug 30, 2018 9:11 am
Forum: Display
Topic: MAX7219 8 Digit Seven Segment Display Module (HCMODU0082)
Replies: 16
Views: 17005

Re: MAX7219 8 Digit Seven Segment Display Module (HCMODU0082)

Pin 13, the pin you're using for the LED is required by the HCMAX7219 library for the SPI clock function. This is probably the issue. Try changing this pin to one that's not in use by the library (e.g. pin 7). You will of course need to attach something to that pin to see it toggle.
by andrew
Mon Aug 20, 2018 6:55 pm
Forum: Electronics Kits / Bundles
Topic: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)
Replies: 7
Views: 1543

Re: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)

The loading effect caused by just using an LED and resistor can cause problems with some types of ICSP programmers (which of course also use this pin for the clock signal). This would be a particular issue for this board as it's designed to be used with this type of programmer.
by andrew
Mon Aug 20, 2018 2:35 pm
Forum: Electronics Kits / Bundles
Topic: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)
Replies: 7
Views: 1543

Re: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)

If used as an Arduino this pin would be digital pin 13 which normally has an LED connected to it.
by andrew
Sun Aug 19, 2018 7:10 pm
Forum: Electronics Kits / Bundles
Topic: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)
Replies: 7
Views: 1543

Re: ATMega48/88/168/328P Target Board (HCPROT0088 93 & 94)

AREF isn't tied to VCC so you can connect it to your own reference voltage.
by andrew
Thu Jul 26, 2018 8:49 am
Forum: Electronics Kits / Bundles
Topic: Hobby Components 8x8x8 Cube Kit (HCKITS0050)
Replies: 63
Views: 13347

Re: Hobby Components 8x8x8 Cube Kit (HCKITS0050)

Glad you managed to get it working and thanks for the good feedback. It had to be something simple like that. There's a lot of pads to solder so it's very easy to miss something or get a dry joint. Sometimes you can get a hairline crack in the solder that's only visible using a microscope.
by andrew
Thu Jul 26, 2018 8:42 am
Forum: Sensors
Topic: DHT21 AM2301 Temperature & Humidity Sensor (HCSENS0026)
Replies: 2
Views: 1907

Re: DHT21 AM2301 Temperature & Humidity Sensor (HCSENS0026)

The ESP devices are becoming very popular now that they are well supported by the Arduino IDE. I've added the url to the first post - thanks for your post.
by andrew
Mon Jul 23, 2018 8:31 am
Forum: Electronics Kits / Bundles
Topic: Hobby Components 8x8x8 Cube Kit (HCKITS0050)
Replies: 63
Views: 13347

Re: Hobby Components 8x8x8 Cube Kit (HCKITS0050)

Thanks for your answers. Everything seems to be OK with your settings and the cable connections are correct so that can be ruled out at least. However I can replicate your error message by simply leaving either the Tx or Rx line disconnected so it is worth checking the soldering for these two pins. ...
by andrew
Fri Jul 20, 2018 7:58 am
Forum: Electronics Kits / Bundles
Topic: Hobby Components 8x8x8 Cube Kit (HCKITS0050)
Replies: 63
Views: 13347

Re: Hobby Components 8x8x8 Cube Kit (HCKITS0050)

You cube looks great. I can't see anything wrong looking at the error message. I assume that you are using the programming cable supplied with the kit? If so are you aware that you will need to press the reset button on the cube at the exact point the Arduino IDE finishes compiling the sketch and at...