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[[File:Ad2phat_bottom.png|thumb|100px|AD2pHAT Bottom]] | [[File:Ad2phat_bottom.png|thumb|100px|AD2pHAT Bottom]] | ||
| − | ;The new AD2pHAT is the latest revision of the AlarmDecoder embedded project. In 2019 it will be replacing the original AD2Pi that was introduced in 2013. The original AD2Pi was designed prior to any standards for add-on boards to the Raspberry Pi. Over the past few years the Pi HAT and pHAT form factor were introduced and many add-on designs have migrated to these layouts. The AD2pHAT is using the the pHAT form factor 30mm x 65mm. This more compact form factor works better with the Pi Zero and still works on the full sized Pi. It is also smaller and closer in size to other micro controllers such as the ESP32Thing that with an adapter can be used instead of a Pi as the host controller. | + | ;The new AD2pHAT is the latest revision of the AlarmDecoder embedded project. In 2019 it will be replacing the original AD2Pi that was introduced in 2013. The original AD2Pi was designed prior to any standards for add-on boards to the Raspberry Pi. Over the past few years the Pi HAT and pHAT form factor were introduced and many add-on designs have migrated to these layouts. The AD2pHAT is using the the pHAT form factor 30mm x 65mm. This more compact form factor works better with the Pi Zero and still works on the full sized Pi. It is also smaller and closer in size to other micro controllers such as the ESP32Thing that with an adapter<ref>AD2PiHAT Pin</ref> can be used instead of a Pi as the host controller. |
;This new design includes several new features. | ;This new design includes several new features. | ||
| − | * The ability to monitor the AD2 Heartbeat signal. | + | * The ability to monitor the AD2 Heartbeat signal via GPIO23. |
| − | * The ability to physically reboot the AD2 embedded device. | + | * The ability to physically reboot the AD2 embedded device via GPIO18. |
* i2c nvram accessible by the embedded host for device tree configuration. | * i2c nvram accessible by the embedded host for device tree configuration. | ||
* Flexible power options. | * Flexible power options. | ||
** Up to 94% high efficiency TRACO Power [https://octopart.com/tsr+1-2450-tracopower-10300099 TSR 1-2450] capable of power a Pi3b+. | ** Up to 94% high efficiency TRACO Power [https://octopart.com/tsr+1-2450-tracopower-10300099 TSR 1-2450] capable of power a Pi3b+. | ||
** Linear regulators for lower power demands. | ** Linear regulators for lower power demands. | ||
| − | *** [https://octopart.com/az1117cr-3.3trg1-diodes+inc.-30954805 AZ1117CR-3.3TRG1] for ~200ma continuous. | + | *** [https://octopart.com/az1117cr-3.3trg1-diodes+inc.-30954805 AZ1117CR-3.3TRG1] for ~200ma continuous load.<ref>Estimate. Needs load testing.</ref> |
| − | *** [https://octopart.com/ld1117v50-stmicroelectronics-2221430 LD1117V50] for ~500ma continuous. | + | *** [https://octopart.com/ld1117v50-stmicroelectronics-2221430 LD1117V50] for ~500ma continuous.<ref>Estimate. Needs load testing.</ref> |
| + | |||
| + | |||
| + | <references> | ||
| + | </references> | ||
Revision as of 21:13, 17 August 2019
- The new AD2pHAT is the latest revision of the AlarmDecoder embedded project. In 2019 it will be replacing the original AD2Pi that was introduced in 2013. The original AD2Pi was designed prior to any standards for add-on boards to the Raspberry Pi. Over the past few years the Pi HAT and pHAT form factor were introduced and many add-on designs have migrated to these layouts. The AD2pHAT is using the the pHAT form factor 30mm x 65mm. This more compact form factor works better with the Pi Zero and still works on the full sized Pi. It is also smaller and closer in size to other micro controllers such as the ESP32Thing that with an adapter[1] can be used instead of a Pi as the host controller.
- This new design includes several new features.
- The ability to monitor the AD2 Heartbeat signal via GPIO23.
- The ability to physically reboot the AD2 embedded device via GPIO18.
- i2c nvram accessible by the embedded host for device tree configuration.
- Flexible power options.
- Up to 94% high efficiency TRACO Power TSR 1-2450 capable of power a Pi3b+.
- Linear regulators for lower power demands.
- AZ1117CR-3.3TRG1 for ~200ma continuous load.[2]
- LD1117V50 for ~500ma continuous.[3]