config.template.h File Reference

#include <stdint.h>

Include dependency graph for config.template.h:

Go to the source code of this file.

Macros
#define	WIFI_SSID   "<YOUR_SSID>"
#define	WIFI_PASSWORD   "<YOUR_PASSWORD>"
#define	RPC_HOST   "ethereum-sepolia-rpc.publicnode.com"
#define	RPC_PORT   443
#define	RPC_PATH   "/"
#define	WIFI_CA_CERT
#define	CARD_PIN   "<CARD_PIN>" /* 4-9 digit PIN, e.g. "000000000" */
#define	CARD_PIN_LEN   (9U) /* number of digits in CARD_PIN */
#define	ADDR_FROM   "<SENDER_ADDRESS>"
#define	ADDR_TO   "<RECIPIENT_ADDRESS>"
#define	ADDR_USDC   "<USDC_CONTRACT_ADDRESS>"
#define	CHAIN_ID_SEPOLIA   11155111
#define	AMOUNT_USDC   1000000UL /* 1.0 USDC */
#define	MAX_PRIORITY_FEE   2000000000ULL /* 2 Gwei */
#define	MAX_FEE   4000000000ULL /* 4 Gwei */
#define	GAS_LIMIT_ERC20   60000ULL

Macro Definition Documentation

ADDR_FROM

#define ADDR_FROM   "<SENDER_ADDRESS>"

Examples

UsdcSigning.ino.

Definition at line 101 of file config.template.h.

Referenced by determineYParity(), and fetchNonce().

ADDR_TO

#define ADDR_TO   "<RECIPIENT_ADDRESS>"

Examples

UsdcSigning.ino.

Definition at line 104 of file config.template.h.

Referenced by encodeERC20Transfer().

ADDR_USDC

#define ADDR_USDC   "<USDC_CONTRACT_ADDRESS>"

Examples

UsdcSigning.ino.

Definition at line 107 of file config.template.h.

Referenced by setup().

AMOUNT_USDC

#define AMOUNT_USDC   1000000UL /* 1.0 USDC */

Examples

UsdcSigning.ino.

Definition at line 115 of file config.template.h.

Referenced by encodeERC20Transfer().

CARD_PIN

#define CARD_PIN   "<CARD_PIN>" /* 4-9 digit PIN, e.g. "000000000" */

Examples

UsdcSigning.ino.

Definition at line 94 of file config.template.h.

Referenced by setup().

CARD_PIN_LEN

#define CARD_PIN_LEN   (9U) /* number of digits in CARD_PIN */

Examples

UsdcSigning.ino.

Definition at line 95 of file config.template.h.

Referenced by setup().

CHAIN_ID_SEPOLIA

#define CHAIN_ID_SEPOLIA   11155111

Examples

UsdcSigning.ino.

Definition at line 112 of file config.template.h.

Referenced by setup().

GAS_LIMIT_ERC20

#define GAS_LIMIT_ERC20   60000ULL

Examples

UsdcSigning.ino.

Definition at line 120 of file config.template.h.

Referenced by setup().

MAX_FEE

#define MAX_FEE   4000000000ULL /* 4 Gwei */

Examples

UsdcSigning.ino.

Definition at line 119 of file config.template.h.

Referenced by setup().

MAX_PRIORITY_FEE

#define MAX_PRIORITY_FEE   2000000000ULL /* 2 Gwei */

Examples

UsdcSigning.ino.

Definition at line 118 of file config.template.h.

Referenced by setup().

RPC_HOST

#define RPC_HOST   "ethereum-sepolia-rpc.publicnode.com"

Choose ONE provider below and comment out the other.

Option A — PublicNode (free, no account required) Uncomment the three lines under "Option A".

Option B — Infura (requires a free account at app.infura.io)

1. Create an API key in the Infura dashboard.
2. In the key's Settings tab, reveal (or generate) the API Secret.
3. Uncomment the five lines under "Option B" and fill in the values. Note: the API Secret must have NO leading or trailing spaces.

Examples

UsdcSigning.ino.

Definition at line 34 of file config.template.h.

Referenced by determineYParity(), fetchNonce(), and sendRawTx().

RPC_PATH

#define RPC_PATH   "/"

Examples

UsdcSigning.ino.

Definition at line 36 of file config.template.h.

Referenced by determineYParity(), fetchNonce(), and sendRawTx().

RPC_PORT

#define RPC_PORT   443

Examples

UsdcSigning.ino.

Definition at line 35 of file config.template.h.

Referenced by determineYParity(), fetchNonce(), and sendRawTx().

WIFI_CA_CERT

#define WIFI_CA_CERT

Value:

"-----BEGIN CERTIFICATE-----\n" \
"MIIDejCCAmKgAwIBAgIQf+UwvzMTQ77dghYQST2KGzANBgkqhkiG9w0BAQsFADBX\n" \
"MQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEQMA4GA1UE\n" \
"CxMHUm9vdCBDQTEbMBkGA1UEAxMSR2xvYmFsU2lnbiBSb290IENBMB4XDTIzMTEx\n" \
"NTAzNDMyMVoXDTI4MDEyODAwMDA0MlowRzELMAkGA1UEBhMCVVMxIjAgBgNVBAoT\n" \
"GUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBMTEMxFDASBgNVBAMTC0dUUyBSb290IFI0\n" \
"MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE83Rzp2iLYK5DuDXFgTB7S0md+8Fhzube\n" \
"Rr1r1WEYNa5A3XP3iZEwWus87oV8okB2O6nGuEfYKueSkWpz6bFyOZ8pn6KY019e\n" \
"WIZlD6GEZQbR3IvJx3PIjGov5cSr0R2Ko4H/MIH8MA4GA1UdDwEB/wQEAwIBhjAd\n" \
"BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDwYDVR0TAQH/BAUwAwEB/zAd\n" \
"BgNVHQ4EFgQUgEzW63T/STaj1dj8tT7FavCUHYwwHwYDVR0jBBgwFoAUYHtmGkUN\n" \
"l8qJUC99BM00qP/8/UswNgYIKwYBBQUHAQEEKjAoMCYGCCsGAQUFBzAChhpodHRw\n" \
"Oi8vaS5wa2kuZ29vZy9nc3IxLmNydDAtBgNVHR8EJjAkMCKgIKAehhxodHRwOi8v\n" \
"Yy5wa2kuZ29vZy9yL2dzcjEuY3JsMBMGA1UdIAQMMAowCAYGZ4EMAQIBMA0GCSqG\n" \
"SIb3DQEBCwUAA4IBAQAYQrsPBtYDh5bjP2OBDwmkoWhIDDkic574y04tfzHpn+cJ\n" \
"odI2D4SseesQ6bDrarZ7C30ddLibZatoKiws3UL9xnELz4ct92vID24FfVbiI1hY\n" \
"+SW6FoVHkNeWIP0GCbaM4C6uVdF5dTUsMVs/ZbzNnIdCp5Gxmx5ejvEau8otR/Cs\n" \
"kGN+hr/W5GvT1tMBjgWKZ1i4//emhA1JG1BbPzoLJQvyEotc03lXjTaCzv8mEbep\n" \
"8RqZ7a2CPsgRbuvTPBwcOMBBmuFeU88+FSBX6+7iP0il8b4Z0QFqIwwMHfs/L6K1\n" \
"vepuoxtGzi4CZ68zJpiq1UvSqTbFJjtbD4seiMHl\n" \
"-----END CERTIFICATE-----\n"

Examples

UsdcSigning.ino.

Definition at line 60 of file config.template.h.

Referenced by determineYParity(), fetchNonce(), and sendRawTx().

WIFI_PASSWORD

#define WIFI_PASSWORD   "<YOUR_PASSWORD>"

Examples

UsdcSigning.ino.

Definition at line 15 of file config.template.h.

Referenced by ensureWiFi(), and setup().

WIFI_SSID

#define WIFI_SSID   "<YOUR_SSID>"

Examples

UsdcSigning.ino.

Definition at line 14 of file config.template.h.

Referenced by ensureWiFi(), and setup().