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thanxs peter F for the clarification :D am going to solder the IC Chip on the board side to. //edit Put some solder on the boardside of the IC Chip. Stil the same on the lcd. also see an error on the linkmeter -> configuration -> HeaterMeter Information Version 20131007B Serial checksum...

will do the shift register this evening. The fan is connected with an utp connector wich is connected to a normal power plug and the other side the female/male on the fan.

Shift register ?

Did it, and still the fan is not working. And the display is not better.

Did this again. lmclient LMDC,0 cat /dev/ttyAMA0 Now i get a bunch of lines with 99,0*40 and then echo -e "\\n/config\\n" > /dev/ttyAMA0" then i don't get info back.

adjust the contrast meter. Just got more visible block's Blower settings is : min 10 max 100 On at max only is not checked.

also did this again : VCC - 2 pins left of ground on J8 - 3.3V RX - 1 to the left of VCC on J8 - 3.3V RST - Top left pin on J6 - 3.3V The RX is : 1,3V

Stupid me :( Have put the MCP1700-33 on a place where a BC337 was needed. Now it is correct. and have good readings on 5V and the 3.3V. Have gone to the webpage and flashed the firmware, and the lcd backlight went on... Now i stil have blocks on the display. I can read temp with a tempmeter...

Sorry... yes there is a sollid 5 V on the 5 V place.

More info : Did some testing on the Power Supply.. There is a problem with the 3V3.. what can it be ?

I already have gone over every pad. Here the reading of the multimeter: VCC - 2 pins left of ground on J8 - 3.3V 2.51V with raspconnected 1.47V rasp not connected RX - 1 to the left of VCC on J8 - 3.3V 3.25V with rasp connected 0.55V rasp not connected RST - Top left pin on J6 - 3.3V 2.50V...

And the yellow led is full on. and the green is half on.

Hi there Bryan, Thanxs for the more indept approuch. I have connected to the rasppi with SSH. Did the : lmclient LMDC,0 Got back : OK Did the : cat /dev/ttyAMA0 Got back : nothing, waited 5 minutes. but no response. What can this be ? The screen i have when it is powered on. ( Pot meter al...

i see squares on my display first row. and if i wait allong time say 30 min the second row is also filled with squares.

Hi there, got some troubles with a HM 4.1 Bought it as a kit. Soldert everything on the board, put it on a raspberry pi and started it up. I can connect to it with ethernet/ip adres. But when i go to linkmeter it says No Communication. I then push both firmware's. reboot, still nothing. I have...