Probably but a 150 ohm resistor isn't too hard to find GET one and install it B4 you power it up!., I'd stay AWAY from Sure Electronics, I have a 22 letter lone correspondence chain on a "Low Power Pic development board" that I bought from them and couldn't re-program from the ICSP Port... With a Pickit 2 the ICD2 board or a Modified Picstart programmer with a special header... they 'finally' determined that I was attempting to program it improperly (I was supposed to program a regular PIC18F4520 as a low voltage part (PIC18LF4520) even tho the part was marked clearly enough for my old eyes to read unaided. I tossed the board and Sure Electronics... Any body wanna buy an unused 3208 display board (2 Ea) and a "New" style controller, I'd cheerfully trade it for 2 Pro Mini's from Ebay ($10.00 ea 5V 16Mhz). Their (Sure's) policy seems to be to wear you down until you get disgusted enough to quit pestering them, They even demanded it be sent back to Verify my findings... Yeah Right spend $15.00 on postage for a $30.00 board... I'd sooner use a hacksaw and "Fix" it properly first by turning it into 2 really useful paperweights. Cheaper and of much more utility.Doc
On all the LCD displays I have used, the backlight LCD A and K wires are soldered on to the board at one end of the display. Use a multimeter to check the resistance between those joints and the backlight connections on the edge of the board. That way, you can tell whether there is already a resistor on the board.
last month I bought 5 for 8.50 ea... free shipping too... But you did well as they are still at 15 to 20 dollars most places... Still see 16X2 displays for 8 to 12 dollars... maybe I will buy one sometime and get to see 90's technology again. seriously I own two and they are parts of dedicated test equipment or I'd have tossed them both too...Doc
Using a multimeter, I found out that there is no resistance. However, I traced the connections with my eyes and found a 47 ohm resistor. I thought this was good enough so I connected the backlight directly to +5v and it worked without burning out! Thanks for your help.
... found a 47 ohm resistor. I thought this was good enough ...