60W Adjustable Temperature Soldering Iron - High Quality BME280 you could have 8 of

you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part

you can buy one here

Detecting method Reflective

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60W Adjustable Temperature Soldering Iron - High Quality BME280 you could have 8 ofProduct features: Uses latest anti static design with double sided board Imported heating element with great power, high stability, and rapid heating for desoldering in under a minute Thermostat circuit with temperature adjustable range between 200 450C (392 842F) Soldering iron tip compatibility with 900M series 70% lower power consumption compared to ordinary soldering irons Silicon tube handle is comfortable and resistant to high temperatures Anti