   else
   if (cmd == 's') servo();
   else
-  if (cmd == 'b') battery();
+  if (cmd == 't') telemetry(); // reply contains a-amps, b-volts, c-charge, u-uptime
   else
   if (cmd == 'i') ina();
   else

#include <TM1650.h>

#define LED_PIN 13
#define RC_RX_PIN 12
#define RC_TX_PIN 11
#define SSC_RX_PIN 10
#define SSC_TX_PIN 9
// power management //

{
  byte i = 0;
  byte fin = index + count;
  if (fin > COMMAND_BUFFER_SIZE) fin = COMMAND_BUFFER_SIZE;
  while (buf[index] >= '0' && buf[index] <= '9' && index < fin)
  {
    i *= 10;
