README: Fixes to grammar and instructions
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@ -189,7 +189,7 @@ Testing heat flow direction with a low set current is recommended before install
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### Limits
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### Limits
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Each of the MAX1968 TEC driver has analog/PWM inputs for setting
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Each MAX1968 TEC driver has analog/PWM inputs for setting
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output limits.
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output limits.
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Use the `pwm` command to see current settings and maximum values.
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Use the `pwm` command to see current settings and maximum values.
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@ -218,7 +218,7 @@ pwm 0 max_i_pos 3
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### Open-loop mode
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### Open-loop mode
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To manually control TEC output current, omit the limit parameter of
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To manually control TEC output current, set a fixed output current with
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the `pwm` command. Doing so will disengage the PID control for that
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the `pwm` command. Doing so will disengage the PID control for that
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channel.
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channel.
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