Jim, Thanks for your reply. I am not absolutely certain about the auto scroll because I have a recollection of writing to line 4 column 20 without it scrolling. I'll have to set up that project again and check to convince myself. I thought about powering the BV4618 / keypad / LCD via an Arduino pin but I do not know if a singel Arduino pin could provide enough power as I have never measuredby bobcroft - Serial & I2C Devices
I have a BV4618 connected to a 4*3 keypad and a 4*20 LCD and I believe I have identified two bugs. 1. if a character is sent to the last position (20) of row 4 the display scrolls up and the top line is lost. This is despite turning the cursor off. As an aside it would be useful if the cursor off was included in the library commands. This scrolling behavior is wrong because sending a characby bobcroft - Serial & I2C Devices