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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)
& c% h' v% Z1 V* }' {- #include <ESP8266HTTPClient.h>
) F7 C9 l! d8 }8 T6 N0 n - #include <ESP8266WiFi.h>+ q/ C& u% t5 j' I9 j
- #include <ESP8266WiFiMulti.h>
q: Y: x& Q# x* {* J0 J/ u - #include <ESP8266WebServer.h>
g2 H& X7 V V8 K( w - #include <arduino.h>
9 h$ v( j2 w, w' t! n - ESP8266WiFiMulti WiFiMulti;
" R' ]% n* D: S/ @$ v4 \ - ESP8266WebServer server(80);0 n! ~/ _5 h' X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# v9 y7 U, r; |7 l4 U - ADC_MODE(ADC_VCC);
9 F4 ~5 f1 Z" E& [6 ?7 D& _4 V8 w - void setup() {6 D/ z, o! z4 ?- k# b
- Serial.begin(115200);( c2 C s/ e. a1 {. D" e' h
- Serial.print("\r\n\n"); `" Y _9 X, A4 B8 _+ d4 m- ]1 l
- pinMode(2,OUTPUT);, c8 O. c0 l" j; S6 L6 W! l
- // WIFI
7 Y$ X9 N8 M9 b" P0 D - WiFi.mode(WIFI_STA);
/ e* c$ H+ L: [( z, C) e - WiFi.hostname("Sparkle");
$ P+ N; I1 n# u1 L, \5 _! k" @ - WiFiMulti.addAP("wifi ssid", "wifi password");7 m" v+ n0 ^3 n% V
- int tryNum = 15;
+ t$ U$ f/ ^2 @& r5 w - Serial.print("Connect WiFi");6 q. M) k+ n& L
- while (WiFiMulti.run() != WL_CONNECTED) {
. R3 ?: E ~' u- w8 W$ p& n* D2 k& x - digitalWrite(2,0);) f% l0 F+ `& s! Q% T, a; N p
- delay(200);" p* g+ `4 }: C9 m0 c5 d
- digitalWrite(2,1);
8 C) U! d+ p, B/ B - delay(300);
: u$ R% g; o5 |% c6 R - Serial.print(".");4 d0 z' `6 A6 u6 a _ c
- tryNum--;
( {3 `3 v9 q. |6 D4 ~$ r/ w2 L - if (tryNum == 0) {+ @( K$ n1 H+ b1 ]4 j
- // 1min7 o( J" D% s/ o5 C/ t( K
- // ESP.deepSleep(60e6);. J3 a. n; W5 |. \5 F
- ESP.deepSleep(0);
2 Y6 p w% q9 F - }# E' J- o2 F0 J7 E2 [# q6 a) t2 z
- }) X I m0 u# G/ @) S
- Serial.print("\r\n");8 O& G7 l, U+ u( B6 l
- digitalWrite(2,1);
% c" U8 j, X4 D8 i - Serial.print("IP address : ");- w8 B: j, _- T1 A* y o( O$ F
- Serial.println(WiFi.localIP());1 }4 ~; q* {- z8 a% w- i
- server.on("/", HTTP_GET, [](){8 f0 {" w1 w8 L( Q$ `+ ]6 k C
- server.sendHeader("Connection", "close");
# u. e3 a" |6 c% s ^! v - server.send(200, "text/html", serverIndex);* g& i$ U+ t4 o% p9 i0 J1 v/ J7 J8 L
- });
0 X& H" |% r2 r" }& s6 m - server.on("/update", HTTP_POST, [](){
% G3 @7 ?; P$ n. @% v - server.sendHeader("Connection", "close");
, u7 m1 k. ~, ^ w) Z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% q# q5 Y; Q9 D8 ?
- ESP.restart();: t7 o# H1 {, t+ G0 V# s" @
- },[](){
- ]4 A0 ^* M5 `# \: P' E7 |/ p+ K - HTTPUpload& upload = server.upload();( A/ y. F. v* ?& s; V7 A) K
- if(upload.status == UPLOAD_FILE_START){* c* o# m# n- |$ s5 t/ r
- Serial.setDebugOutput(true);
, r' w+ f; z" v2 c% y - Serial.printf("Update: %s\n", upload.filename.c_str());
1 i8 I1 y3 R- C" O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 G/ R1 ?' _% G' \
- if(!Update.begin(maxSketchSpace)){
/ N* j4 [+ a3 L& U8 V - Update.printError(Serial);
& d$ b8 ]" C) G& C - }% P* _, B! O, F: Y$ z' s! H# V4 O
- } else if(upload.status == UPLOAD_FILE_WRITE){8 q6 s5 ~# s/ ^" o; h% u
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 |$ u9 Z5 k2 X7 h
- Update.printError(Serial);
* I G; K% Z; p1 ^ - }
& z4 z a z# ?/ E+ ]" G - } else if(upload.status == UPLOAD_FILE_END){; y! @+ V2 S3 E Y! p, \4 v- z
- if(Update.end(true)){
" r7 [ ?, s2 Y4 l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 [9 x/ H( A% C' E, D3 x h - } else {
- Y' F! P: `8 i4 g; l5 K& k - Update.printError(Serial); a! g0 s5 S$ y, x( \
- }
$ ^0 t4 ~ {+ u - Serial.setDebugOutput(false);3 M( a: G' n! h+ I: G9 O
- }
1 Q) @- j; q# n8 g1 e$ u: s - yield();
) J! ?$ o0 X; K7 k4 B; w - });
. K" c# X. Q$ t. O9 A6 ` - 2 j, `$ B8 }4 O3 G# i4 \2 q) M& H
- digitalWrite(2,0);9 p9 r8 q4 N6 S6 t
- mainAction();9 B( Q" u# L/ x! }2 _+ Y
- if (digitalRead(0)){0 S( D3 M+ P( ^( Q& a' T
- ESP.deepSleep(0);
& _% p) V& j$ P2 H+ s2 G: M - } else {. g( l7 w7 W% H" Q0 f5 Y6 c# S
- server.begin();+ Y" u9 k' y" G& m
- }
& g, `" {5 G0 `. a5 s - }' w/ l9 x- t1 [4 [) I7 {
- void loop() {" U. g E8 E1 U, w, _) ?. s
- server.handleClient();
1 x4 W; _* g% d: T4 g! A - delay(1);( |" I7 ]& E- y, B y
- }5 n! B1 e, e. |9 s: ]; f3 [) ~
- String doGet(String url){
2 B9 y2 O& m9 d# J: ?6 N - if ((WiFiMulti.run() == WL_CONNECTED)) {
; k- v: h5 Y! \, f - HTTPClient http;6 o' Z( X. f9 Z7 ~6 N- i/ Y! v
- Serial.println("[HTTP] begin...");
+ \( L$ J7 Y H' Y - if (url.startsWith("https")) {
0 j) `0 K; G" y7 z4 {% x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 _- `$ ~. q% v; P) o - } else {, l& @: T$ w+ C6 i5 K. n
- http.begin(url);* ]# i4 y8 V% K* D
- }9 P4 e. S6 ]* T. Z. n% h; F
- Serial.println("[HTTP] GET...");! W" x' `1 w6 H: z7 b$ K
- int httpCode = http.GET();
* Z/ ?; v! i' S - if (httpCode > 0) {
N" h; {3 w: y: e2 O - Serial.printf("[HTTP] code: %d\n", httpCode);
) y- r4 l8 t% C2 Y3 U, t1 N: S7 \5 p - if (httpCode == HTTP_CODE_OK) {
" `( S, p+ T" L4 j+ W3 I; I- a - String payload = http.getString();
# F) Y4 a1 L: c' F - Serial.println(payload);
( c0 M0 f' u8 m - Serial.print("\r\n");
4 U% P2 v. a' w9 u: g - return payload;
2 [9 F6 y+ L$ [2 N* ] - }; c5 F3 }. F+ t" D" o: c
- } else {
" @4 W' [; r. S6 V - Serial.printf("[HTTP] GET... failed, error: %s\n",0 R5 X* j7 q* b) r
- http.errorToString(httpCode).c_str());4 V; C0 r( g/ S. Y" Y
- }
* B& A- `' N0 `. l. S* S: i - http.end();
0 \% q( ~& r" ?" }4 g6 w& c1 v( @% W - return "";
: P3 Z# z/ |% w% v - }
; w1 r$ ]4 D/ ^. I/ h - }
8 o5 j9 `+ q4 c, I7 H. V/ } - void mainAction() {% R. N9 J" u% |
- // 发送请求' |5 m, {, D* r5 X1 v0 F6 S
- doGet("http://google.cn"); m7 g; Z' W) S1 P1 D
- }9 C+ b+ \5 l! J( p+ b
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