There are - two for power, two for the DHT sensor, two for RX TX, and you even have one left over (not counting reset pin) I'm using serial from ATTiny85 to a

There are - two for power, two for the DHT sensor, two for RX TX, and you even have one left over (not counting reset pin) I'm using serial from ATTiny85 to a ESP8266 as my wireless transmitter already: https://i.imgur.com/vZzGGZL.png https://i.imgur.com/vZzGGZL.png but the ESP itself is probably the root of the power problem.