How to Make a Solar IPod/iPhone Charger -aka MightyMintyBoost : 5 Steps (with Pictures) - Instructables
Amazon.com: SparkFun Thing Plus-Artemis Machine Learning Development Board Includes BLE 1MB of Flash USB-C Qwiic I2C MEMS LiPo Charger Compatible with Arduino IDE Platform Run TenserFlow Models Feather Footprint : Electronics