Re: [Dorset] YAWMT Question

2017-06-22 Thread Patrick Wigmore
Hi Terry, On Thursday, 22 June 2017, at 13:23:35 BST, Ralph Corderoy wrote: > That's sounding as if you'd have a database server sitting on > the network with all the slave and the master being its > clients, sending SQL to modify tables. And if the slaves are > writing to the tables, and the

Re: [Dorset] YAWMT Question

2017-06-22 Thread Terry Coles
On Thursday, 22 June 2017 13:23:35 BST Ralph Corderoy wrote: > I'm assuming that minimising power consumption won't be an issue either > way. Obviously we won't want to install a heavier sub-station for the WMT, but no; we have no known issues with power ATM :-) > I'm guessing slave Pis will

Re: [Dorset] YAWMT Question

2017-06-22 Thread tda
Hi Terry On 22/06/17 12:25, Terry Coles wrote: On Thursday, 22 June 2017 12:17:56 BST Terry Coles wrote: I'm not sure that I understand how this works. Taking the Remote Pi; it reads the water level and writes the value to a variable. Fine so far, but how can the Master Pi, then read that

Re: [Dorset] YAWMT Question

2017-06-22 Thread Terry Coles
On Thursday, 22 June 2017 12:17:56 BST Terry Coles wrote: > I'm not sure that I understand how this works. Taking the Remote Pi; it > reads the water level and writes the value to a variable. Fine so far, but > how can the Master Pi, then read that variable? That variable is a > location in the

[Dorset] YAWMT Question

2017-06-22 Thread Terry Coles
Hi, (Yet Another Wimborne Model Town Question) :-) The system design for the WMT River System Water Sustainability Programme (that really is its name) is progressing slowly and we have tentatively agreed on a number of things. The control system will be a distributed network of Raspberry Pis,