You may want to update the line spacing to be a little lower than default due to small screen size on IoT devices. I faced this challenge while working on a Watchy hobby project. You may have used a font generator or just using the default fonts and got a *.h file that has the details of the font. In that case just change the last integer value in the PROGMEM variable.
Check the certificates installed or not Find the actual java location using readlink -f `which java` Go to jdk/jre/lib/security Run the command : ../../bin/keytool -list -keystore cacerts Get the Certificate (This is WIP, was not getting the correct certificates) Use either of these commands to get the certificates ( need to modify) openssl s_client -showcerts -connect 10.101.12.89:8087 /dev/null|openssl x509 -outform PEM >emailuat.pem echo -n | openssl s_client -connect 10.186.18.23:8084 \ | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > emailuat.cert Install the certificate Find the actual java location using readlink -f `which java` Go to jdk/jre/lib/security Run the command ../../bin/keytool -import -trustcacerts -alias emailuat -file /home/akhil/emailuat.cert -keystore cacerts