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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)2 l* e2 ~5 H" u. I7 F! D
- #include <ESP8266HTTPClient.h>3 q# \$ @, ~" L, u4 ]
- #include <ESP8266WiFi.h>
, _! v: r1 Q3 y9 g! p" M, r5 \ - #include <ESP8266WiFiMulti.h>
, r ?5 K, d; h( E. s - #include <ESP8266WebServer.h>% s$ }& N" h' J- P1 K" }' U" _
- #include <arduino.h>
+ e; p: J9 D, Z+ s! V. F. g - ESP8266WiFiMulti WiFiMulti;$ R: L$ W2 j# W+ L) ~; u6 f! `
- ESP8266WebServer server(80);
" b5 S r2 y7 q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 g8 J" U# z( m! O h9 z+ k3 x
- ADC_MODE(ADC_VCC);
: T' w- |9 x" o; J - void setup() {
. u, r! W3 x) w4 y) z - Serial.begin(115200);% t8 h* N9 a5 C0 W
- Serial.print("\r\n\n");
w' V+ R# q; ]% H3 z9 r" H - pinMode(2,OUTPUT);
& x }7 p0 P: p$ d0 p - // WIFI
7 \# o) y6 b* A/ [( J - WiFi.mode(WIFI_STA);# K! ]3 I% K$ ]) q
- WiFi.hostname("Sparkle");
. `/ x1 r: M, K. \# W5 Y; u, n' z - WiFiMulti.addAP("wifi ssid", "wifi password");& N2 p, k7 Y: d/ O4 F* h7 |7 P
- int tryNum = 15;7 `0 b+ w7 ^9 @% V; w* _/ y
- Serial.print("Connect WiFi");
# E1 q9 c) s m! Q' Z - while (WiFiMulti.run() != WL_CONNECTED) {9 z; L; s. B9 }) h# e
- digitalWrite(2,0);
- H5 K' Q4 |/ y. } - delay(200);- q( L b. ^! m* y4 ]! t% m$ [
- digitalWrite(2,1);
/ {( B4 x4 v7 S& q9 c- q- R3 A$ j - delay(300);
2 f0 n9 R$ F9 c6 ]' z - Serial.print(".");
9 N9 ?) R7 P/ K, c - tryNum--;, F+ |- w- R d T
- if (tryNum == 0) {& W0 v. d6 T. d( w4 y
- // 1min
( u2 i R+ }% W2 |% s8 L, R - // ESP.deepSleep(60e6); _$ D9 E$ Z" G+ L/ C5 U+ W
- ESP.deepSleep(0);7 o( d' E5 P* R# d% \
- }7 q1 N. }8 C7 Z G- o
- }
% k% }4 }7 e% X+ r6 ~$ E - Serial.print("\r\n");
2 E2 o% _8 T( @9 Y# Y+ H - digitalWrite(2,1);
A1 O% f* V/ R5 f& { - Serial.print("IP address : ");
: X5 Q9 g) z& k0 n1 C% n5 Y3 _ - Serial.println(WiFi.localIP());
( a5 c: c+ }) b* i2 D - server.on("/", HTTP_GET, [](){2 l- G( L1 a3 k' d. h) A* ^
- server.sendHeader("Connection", "close"); h5 z" F* V; b. o+ T& Q
- server.send(200, "text/html", serverIndex);1 R% A8 U4 m- o3 }; d6 }
- });% V% i* x3 c7 }
- server.on("/update", HTTP_POST, [](){
; J' s( M6 _' ^/ Z - server.sendHeader("Connection", "close");
5 v0 ? h% L3 m, h7 ] - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 o2 M) S) a+ R, k* h" F - ESP.restart();
2 U! G9 z5 ~1 s3 w8 z: I. o' k! z - },[](){
: e: ?: x D9 D - HTTPUpload& upload = server.upload();
% O( D* x' z, g+ q5 K0 j4 q# ~ - if(upload.status == UPLOAD_FILE_START){# u( N$ U, j7 Z6 f
- Serial.setDebugOutput(true);' e/ U6 i j i4 ~
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 ], C( U' n& x' ?2 d! d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ i: f4 z! ~% ~3 `7 Q
- if(!Update.begin(maxSketchSpace)){. l9 O( T) b# H. K
- Update.printError(Serial);
' S/ K4 t5 F9 |8 X! E& @ - }
4 s$ T, ~9 q. i# s; W2 j$ R - } else if(upload.status == UPLOAD_FILE_WRITE){
. [# @+ `. Z8 a+ n& D0 E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 S$ a: a: [: z2 `) c/ r
- Update.printError(Serial);
; l: |, L1 Q Y7 i- v8 ~ - }
9 e; h; }6 M8 _& Z% x - } else if(upload.status == UPLOAD_FILE_END){2 X! H+ G- S9 ]2 L: n. M2 V
- if(Update.end(true)){# Y1 w5 z$ n% o f. ?: ]" W
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( r) e4 o9 n( m% q
- } else {
9 X+ r& r9 S5 x. p. q' C/ X - Update.printError(Serial);$ F& e' J A+ y4 V2 N
- }. [0 e0 b9 g! O8 C# P
- Serial.setDebugOutput(false);
$ ?) X+ N3 r, {, \( @5 K) | - }
( e6 F* u3 Y: Q9 \: ^% N6 H( N - yield();) F: ?5 j5 b1 X! Y4 X, y n2 B, U
- });( B+ O2 u; T3 M5 N0 z5 r. e
-
" ?7 ~ `3 d# \8 n' f- h' d( Y - digitalWrite(2,0);. d8 O& i/ @. u% e9 G3 v
- mainAction();
6 d" x2 M7 n( u1 v) i8 [; Q - if (digitalRead(0)){
1 k4 ], \) }. I8 p3 Y - ESP.deepSleep(0);
/ E1 v9 ~/ _& E, g s; z: F* r& T- z! U* Q - } else {$ f* s3 U9 Z) w
- server.begin();8 d! [ {6 X9 ?6 u# l
- }
& b% K0 b3 a; O [4 t. u! G - }
8 J. x1 e) D3 x5 e y - void loop() {) S2 U x) C/ J! H D
- server.handleClient();! U& e: c. D7 c* q
- delay(1);; x% H! ?" M: i- _2 }3 I' Y
- }" G* F# _ t( {. _
- String doGet(String url){
# z: H3 b' ?- u7 d) s - if ((WiFiMulti.run() == WL_CONNECTED)) {2 |" {% u F( A6 g1 ?* K
- HTTPClient http;: A& _$ ?3 ]; P2 X. x% A0 }
- Serial.println("[HTTP] begin...");$ B6 h5 n. [" A8 E q# V4 u
- if (url.startsWith("https")) {
' ~6 v! {4 J: ]# W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 M& r( d5 X3 {9 q6 v - } else {; ?! j9 Q1 [" C) r" M t+ c
- http.begin(url);
. P+ ~5 d1 M# v+ _8 u0 [& @/ T - }
! o0 Y+ D# F3 n3 V - Serial.println("[HTTP] GET...");
. J- b! x4 E7 v6 k# Z9 S6 v - int httpCode = http.GET();
4 @; q* w% a6 F: e' [7 I - if (httpCode > 0) {& u6 k" i' E- K- P! l% O
- Serial.printf("[HTTP] code: %d\n", httpCode);0 F! P. v# B9 g" t. _+ G$ G
- if (httpCode == HTTP_CODE_OK) {3 R0 |$ N& ^2 k- U& N9 p+ A% g
- String payload = http.getString();( x0 K- \; d) A% E# [) _
- Serial.println(payload);) [2 u# w: w9 s7 J- N
- Serial.print("\r\n");0 z/ z0 m& X! @5 \( M# C
- return payload;
3 O5 x& b# ] H! n4 \( j - }/ R. o# K- \1 ]9 ]) E5 }3 ?
- } else {
7 Y5 E2 R4 I4 a7 U9 c - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ c0 _+ I- P& R. _* Q! z - http.errorToString(httpCode).c_str());
7 M6 C ^/ X/ e- A9 y$ h. H - }6 J7 p1 [: v. J# x
- http.end();
5 C7 C7 Y: H$ G0 J% ]/ W- g) W1 w# q - return ""; g5 ~5 G) R# W2 }3 i
- }
8 p$ W$ o: r& a, w: H - }# _) p. J h( x! b: P/ l
- void mainAction() {
4 a% ^8 A C0 r0 z3 C - // 发送请求. N! d+ Y; v! z" z+ R0 E% w* x
- doGet("http://google.cn");# E) w1 t2 _0 R" K% B" j
- }
" \) a/ q* {: `2 U
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