#robotics Logs

Nov 01 2014

17:03 rue_house does pretty good against the sand blaster
17:29 Tom_itx good score
17:29 Tom_itx cheap?
17:30 Tom_itx single stage kinda sucks but...
22:59 rue_shop2 there we are, I knew a window was missing
23:00 rue_shop2 how many joules to take 100gal of water and raise its temp from 20c to 75c?
23:00 rue_shop2 anyone know a good i2c adc?
23:00 Tom_itx why not spi?
23:01 Tom_itx oh for the furnace?
23:08 rue_house yea
23:08 rue_house I already have an i2c bus
23:08 rue_house thinking about it It would help if they emulate the lm75's
23:08 rue_house so I'm thinking tiny10
23:11 rue_house I keep losing the temp sensor on the storage tank, I THINK its cause the chip dosn't like sitting at 75-80c for a long time
23:11 rue_house it keeps flipping out and not responding
23:17 rue_shop2 if the boiler thinks the tank is at 0c, it will keep pumping heat into it, and the house will not enguage to take heat out
23:19 rue_shop2 that all said, I'm uisng the i2c in a star config
23:25 rue_shop2 how can microchip sell a 10 bit i2c adc for $4.55 is a tiny10 is less than $1 ea?
23:26 rue_shop2 +V, gnd, reset, D, CLK, Ain
23:26 rue_shop2 its too small for address bits
23:26 rue_shop2 hah
23:27 rue_shop2 I still cant find a use for a t10
23:27 rue_shop2 hmm, I can make a t26 emulate an array of lm75
23:32 Tom_itx not if you use 2 pins and ignore the upper bit
23:33 Tom_itx meh, probably not anyway
23:39 rue_shop2 I have lots of tiny13 I wish were tiny85
23:39 rue_shop2 so I might as well use them up
23:45 rue_shop2 hmm I have a misbehaving m328p
23:45 rue_shop2 its like the clock rate is wrong
23:45 rue_shop2 how do i read the fuses?