Transmit only works below a certain IR (Sample Rate)

Question

When my XBee is attached to a USB Explorer breakout board and connected to usb power (doesn't need to be PC) everything transmits fine. However, if I do not use the USB Explorer breakout, but any other power supply, the XBee will only transmit when IR is <= 5000ms. Sleep mode is off. I have a Power Supply, and can confirm proper voltage and amperage are being supplied. Why would the XBee function properly only when IR is <= 5000ms? At 6000ms it works sometimes, at 7000ms it works seldom, and above that it doesn't work at all. I have tested with a number of different XBees and power supplies and all have the same issue. I would prefer not to sample and transmit every 5 seconds because it is way too frequently.

I am out of ideas. Any thoughts?

Answer 1

what exactly are you trying to do? You should not need to set IR to send serial data at all.

Comments

I am reading a temperature sensor from one XBee and transmitting it to another XBee as an API dataframe. From what I have read, the IR dictates how often the XBee will sample the sensor and transmit the data.

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IR is used for Analog data pulled from one of the modules ADC lines.

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Yes, which is what I am doing. I have the pin set to ADC and I am setting the IR to sample my analog sensor. However, as mentioned, for some reason this only works when the IR is < 5000ms, unless it is connected to a USB explorer and a USB power supply. The problem isn't around whether or not I know how to properly sample analog data, the problem is when I set the IR > 5000ms nothing is transmitted unless the XBee is connected to a USB explorer and USB power supply. Below 5000ms, and everything works fine without the explorer or power supply.