need help creating a loop URGENT

if x>=3.3
    disp('signal recevied soil is dry time to water')
writeDigitalPin(a,'D2',1);pause(0.2);writeDigitalPin(a,'D2',0); 
elseif x>=2.9
    disp('signal received soil is wet but not wet enough time to water')
writeDigitalPin(a,'D2',1);pause(0.2);writeDigitalPin(a,'D2',0); 
else 
    disp('signal received soil is wet')
end

how do i make a loop that keeps running through this if statement until the value of x is <2.9

Answer 1

[KSSV]

for x = 0:0.1:5
if x>=3.3
    disp('signal recevied soil is dry time to water')
writeDigitalPin(a,'D2',1);pause(0.2);writeDigitalPin(a,'D2',0); 
elseif x>=2.9
    disp('signal received soil is wet but not wet enough time to water')
writeDigitalPin(a,'D2',1);pause(0.2);writeDigitalPin(a,'D2',0); 
else 
    disp('signal received soil is wet')
end
end

signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet
signal received soil is wet

signal received soil is wet but not wet enough time to water

Unrecognized function or variable 'a'.