Vcharum terminals can work with any of your devices in Slave Mode, having a really simple integration.
Integration options:

1. • Slave (Vcharum is controlled by an external modem/controller via UART, having no SIM card)
2. • 3 in 1 (Vcharum transmits telemetry data to the partner server via its SIM card)
3. • 3. • API integration (uploading data from Vcharum server to the partner’s server, command transfer)

Connection interface: UART/RS232/USB.

Your device initiates a command to read out the following information on the card: amount, currency, current time. The terminal reads the data from the card, conducts the transaction and returns the transaction result (successful/rejected) for your device.

It is possible to access the Internet via your device or via the modem of Vcharum (optional). When connected in Slave Mode without using the modem of Vcharum, no subscription fee is charged.