techElder
Well-known member
I'm evaluating ways to create addresses for "slaves" (not i2c for me, but could be for someone else) in an RS485 system with a single master.
There are jumpers, switches etc. available so the user can set a slave to a particular address, but that takes some education. Also, this kind of hardwired addressing requires more pins from the PICAXE.
I've even considered an analog method with a resistor chain using ADC on one pin.
EDIT: Typically there could be 32 to 128 "slave" devices.
EDIT: If these devices were mass produced, it might be burdensome to give each one a predetermined s/n. Really, the only need for "uniqueness" is within the local network of devices.
What say you?
There are jumpers, switches etc. available so the user can set a slave to a particular address, but that takes some education. Also, this kind of hardwired addressing requires more pins from the PICAXE.
I've even considered an analog method with a resistor chain using ADC on one pin.
EDIT: Typically there could be 32 to 128 "slave" devices.
EDIT: If these devices were mass produced, it might be burdensome to give each one a predetermined s/n. Really, the only need for "uniqueness" is within the local network of devices.
What say you?
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