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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)4 O, n+ b2 L/ W4 M% I" h/ v
- #include <ESP8266HTTPClient.h>
+ N- N5 N- G1 i# r1 N - #include <ESP8266WiFi.h>, `) P+ @& j, v/ G( Y" b
- #include <ESP8266WiFiMulti.h>4 {2 G3 c; G" h( A! j9 B& T- `
- #include <ESP8266WebServer.h># m5 Z6 ]& @" @4 R: K a
- #include <arduino.h>. x% n/ j/ {$ U3 X& G M
- ESP8266WiFiMulti WiFiMulti;
1 i& e2 Y' I: C, @ - ESP8266WebServer server(80);
7 Y4 R' e4 W5 I7 d* ~ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 ~: Q0 \' W! |" T2 k7 f - ADC_MODE(ADC_VCC);
3 h6 Q! ?7 h _+ q - void setup() {* m" c/ n! o4 ]3 m+ s
- Serial.begin(115200);5 B2 H* ?, O$ C" O! Q; t, {- V7 v5 O
- Serial.print("\r\n\n");$ S9 j' a6 q! \# F; \
- pinMode(2,OUTPUT);$ _9 L' P# [+ T1 r; O2 z% a
- // WIFI: S( N8 w, b$ d& `, z
- WiFi.mode(WIFI_STA);
- f; l% T& ^8 A6 L, y$ e2 I, e - WiFi.hostname("Sparkle");5 T! O. E/ T' N {
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ i( h8 h# r/ j' j& v) E - int tryNum = 15;
$ \9 i' g8 E% z" Y - Serial.print("Connect WiFi");) B; q$ i) |! {. f6 i( L. J$ M
- while (WiFiMulti.run() != WL_CONNECTED) {
8 P3 x+ z7 Q# M - digitalWrite(2,0); s' K+ x/ s' T) M7 b; B
- delay(200);
9 y! J# v2 _) B; }2 M - digitalWrite(2,1);
8 u. t M4 \2 P1 ` - delay(300);
8 v0 J3 r7 o g! R. k5 J, ?. j - Serial.print(".");2 K% R. Q$ B( a- |
- tryNum--;) T# L( \' W; `
- if (tryNum == 0) {/ C/ e( M% ~3 W! N2 F
- // 1min
9 q1 S1 {. a1 w- E' B - // ESP.deepSleep(60e6);
# }5 `. d/ U4 Y9 M5 x. `- P - ESP.deepSleep(0);8 ]# k: o0 V1 z% z8 ~
- }
6 y* d8 \6 [1 c- j+ N - }, G, _. P' i) t: ?/ A5 @/ {
- Serial.print("\r\n");) R3 a! t# z: ~
- digitalWrite(2,1);
& ?$ l' j0 N) i( U - Serial.print("IP address : ");
# B. a! h' O2 J- k - Serial.println(WiFi.localIP());
1 U+ _. W; J( d* ~% |" C. C - server.on("/", HTTP_GET, [](){% m0 k$ i& v0 ~5 ?( [: x# v
- server.sendHeader("Connection", "close");" }( a. h x n- c% U
- server.send(200, "text/html", serverIndex);
; K) a6 S" G& v3 ?' Q3 \ - });6 ?. }4 p/ y* F% u; R O; [( ]
- server.on("/update", HTTP_POST, [](){
0 g4 C! S. `" [. s& \ - server.sendHeader("Connection", "close");% B% M8 L+ O* M0 X# m( X" ^0 n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 p# B% Y( I4 A! |9 p: k5 Y: _
- ESP.restart();
8 l+ y! h3 l3 Z, L& ~ - },[](){5 ^; K1 u1 g' f/ @4 {
- HTTPUpload& upload = server.upload();0 |! G) ?) U. B& g" {
- if(upload.status == UPLOAD_FILE_START){5 x; Y% I" R* D! j5 j* @* V
- Serial.setDebugOutput(true);8 j$ @! N" k% h( \
- Serial.printf("Update: %s\n", upload.filename.c_str());
( f% h& @! W7 ~9 ^ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ b5 C: A3 c I0 L8 C8 F - if(!Update.begin(maxSketchSpace)){1 G3 ~4 X; O9 B* K
- Update.printError(Serial);6 C i/ d- \1 E
- }
* t8 m* h" J+ w0 q5 J - } else if(upload.status == UPLOAD_FILE_WRITE){
: G0 p$ Q" p5 I% q! J9 @4 x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) |0 K& V1 q# Z6 m: R
- Update.printError(Serial);4 `2 q2 I1 k4 G1 F- R- i2 l
- }
9 D$ D) r/ ~4 a% h - } else if(upload.status == UPLOAD_FILE_END){
/ {7 v) X2 M. u4 b - if(Update.end(true)){# r( I* n) i* L( p" _9 T" h4 b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- z4 V, S) M1 |" ]- y2 K- T7 @5 t: e( l - } else {
- c! U) n2 W6 ]2 y6 ~3 J7 R - Update.printError(Serial);
8 {* Z: W* ]5 K ^6 L; a - }; f7 z1 U0 ?" w8 H
- Serial.setDebugOutput(false);
$ S3 K7 J, d: M8 R1 X7 T - }) R3 F( D$ C. `: }
- yield();
" M+ Z5 Z7 D% N& i - });; w. N8 N' I+ n, V! V0 \
- & S- j4 A# o, K% c
- digitalWrite(2,0);9 Q* s4 Q h2 R* y# C
- mainAction();
& V2 c8 _. Y6 D, p - if (digitalRead(0)){
) o* d# t& u7 n- w" Z1 @& F/ H! r - ESP.deepSleep(0);
5 Z; S* W0 O) t. F! Z' \- U - } else {- v- O1 d: K3 B4 h7 j, N
- server.begin();
1 G" n4 C1 Q& @, `$ o6 B' Q - }
" Y: p c+ G# _; Z - }
9 |* T: f& r3 v& G! K - void loop() {
' {- { T2 h5 r - server.handleClient();
# K3 P! |0 b# V5 d; x - delay(1); R8 |; V3 B4 z( J
- }+ ?0 ]& d- G9 y
- String doGet(String url){. {- Q- R. n: u3 c N) G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
* y9 |: W8 E+ u" \" a, _2 _, c7 m - HTTPClient http;
# r: \' h. @# _" {2 s- { - Serial.println("[HTTP] begin...");
' \" q! `4 _7 b) F% E2 |, H - if (url.startsWith("https")) {
7 X$ H$ y2 r* u. K k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( b' _9 A" [& d+ K' D. W6 A - } else {
8 Z! Q3 d9 G& u+ |8 j - http.begin(url);
) T2 v# q Z: v) l - }
4 O# g; W/ [( _ - Serial.println("[HTTP] GET...");
/ c$ Q6 M/ Q5 {- c - int httpCode = http.GET();9 l3 G; t/ X' e# Y3 {! X4 t
- if (httpCode > 0) {
& o, D% p9 i. `. g1 b - Serial.printf("[HTTP] code: %d\n", httpCode);
, a: C4 I/ l/ B; q: [. a - if (httpCode == HTTP_CODE_OK) {
4 e% `+ K7 [- N3 V - String payload = http.getString();
' p1 c( Y$ h6 S# g, K: t7 y2 R - Serial.println(payload);# z! m* Y# M9 X. }; B
- Serial.print("\r\n");
2 G. @- C4 [8 L H - return payload;
8 d% v) A/ Z+ d, X - }& Y+ s2 C0 v! J0 s
- } else {/ F% O. c3 P, k; e1 U/ X8 `! M
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ o' m+ [1 P+ [: [; r+ W
- http.errorToString(httpCode).c_str());2 \/ p1 a9 [0 \ r
- }
" N% n/ n$ ~3 v; n/ u* d- ?+ G - http.end();0 \4 v7 W8 |% a) H' J' x7 r% d
- return "";
! }+ z: j. ?# a( U: \( Q - }
% a1 u8 `! {+ {( u - }7 I# n. o C5 ~& {9 B
- void mainAction() {
L4 z4 Z2 f! ^ W0 o) g - // 发送请求- H3 [ I: e0 p7 P( d( k
- doGet("http://google.cn");
2 m( [" c- u# N9 A( [9 M - }, F* A) g$ {6 n! H8 g- j9 r" A, e" _
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