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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 @8 V; i2 \1 K/ _5 q
- #include <ESP8266HTTPClient.h>
. r% Z8 r W' n" e7 m7 z - #include <ESP8266WiFi.h>
7 l( w4 W, F& E6 d* C9 x% `. F! I @ - #include <ESP8266WiFiMulti.h>
2 K; b+ K+ J6 h4 f1 n4 p0 y - #include <ESP8266WebServer.h>
' o. R2 h6 @9 i. f - #include <arduino.h>
/ E/ H' i0 Y* A. H - ESP8266WiFiMulti WiFiMulti;# ^4 a3 y. u: E8 B7 a" H; `6 n3 }
- ESP8266WebServer server(80);" S8 ]8 t4 H8 s; M M! m; n/ e
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 P/ h, T; x% ]2 |2 A6 O) X& M
- ADC_MODE(ADC_VCC);
/ N; ]( |2 m* k. z - void setup() {7 G4 @7 D( x! `2 @* P
- Serial.begin(115200);7 s7 p( Z7 L" d. B
- Serial.print("\r\n\n");
# N! [/ S( g" z - pinMode(2,OUTPUT);9 R1 m n. n4 I" O8 n: q# J0 V3 I n
- // WIFI
5 R1 l* x- m' v; d& g; s) l - WiFi.mode(WIFI_STA);# D1 c% b2 Y* u1 \/ g1 d
- WiFi.hostname("Sparkle");! r5 p* b. Q2 q% r
- WiFiMulti.addAP("wifi ssid", "wifi password");- {% l# H& `. N: h
- int tryNum = 15;
, I# R2 w; [) u7 H - Serial.print("Connect WiFi");) h+ w. T+ g& ]7 y! z
- while (WiFiMulti.run() != WL_CONNECTED) {
6 [/ s0 z/ }& }9 W# L - digitalWrite(2,0);: \" q8 T7 Z' y2 k2 X4 O
- delay(200);
6 p. [3 X4 e2 Z& k, e - digitalWrite(2,1);+ y2 j) I! T* ?8 x7 L
- delay(300); W2 K( c5 m+ [: s7 @3 H
- Serial.print(".");
( `' h0 V7 o! M, Y3 C; t& g/ I - tryNum--;
: b. n$ f( S$ P1 C- ?8 t! r$ l7 X - if (tryNum == 0) {$ V, a( l% Y7 ~7 i
- // 1min5 l/ }+ e% S: q8 r
- // ESP.deepSleep(60e6);6 p4 Q9 X" B! T4 n- Z
- ESP.deepSleep(0);
9 f) ~4 o; {# j! U4 s9 l; k9 Z - }
$ l3 j) `8 T) F0 \ - }8 {+ Q7 L: `7 R% v
- Serial.print("\r\n");
) y2 c+ w+ f7 h7 q2 f7 ~1 K, y - digitalWrite(2,1);
. x! _$ j: s( b4 m: ?( C7 M - Serial.print("IP address : ");3 q- U, s+ e. H3 E# T
- Serial.println(WiFi.localIP());
5 F/ m6 ^4 b, r# C% l - server.on("/", HTTP_GET, [](){, u2 `6 d1 K4 W2 K
- server.sendHeader("Connection", "close");6 ^/ o4 K3 m0 x: v* B
- server.send(200, "text/html", serverIndex);' p6 U6 O# u( E6 s& J; z
- });8 y% F9 y. Q" N# _2 i
- server.on("/update", HTTP_POST, [](){- q" b' y2 E* T1 U" X! H5 c9 Z
- server.sendHeader("Connection", "close");4 i" G! u8 H# Z& p4 ^/ l
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 ?# N+ E8 B. [0 u) j2 z- Q
- ESP.restart();+ ]- O; H2 C4 B+ w% }! w
- },[](){
3 m; a& W' v1 D. Y - HTTPUpload& upload = server.upload();" l2 { M# a* O5 L( f
- if(upload.status == UPLOAD_FILE_START){. U; q7 T$ a9 z- b
- Serial.setDebugOutput(true);, C' x. m2 g4 ]) s8 |, m
- Serial.printf("Update: %s\n", upload.filename.c_str());5 z" C& _9 P5 G5 N, V/ C, O3 |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 a1 ?! x$ n2 U( r; p X - if(!Update.begin(maxSketchSpace)){
1 g0 q, ~7 K; {6 e( k1 ?* | - Update.printError(Serial);4 U: H; q$ p/ f+ T X
- }
" p- c5 H; ~2 U - } else if(upload.status == UPLOAD_FILE_WRITE){8 y( g# u# a9 z( q: X0 o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 n* ~; R" q& {8 C* s7 ~2 L - Update.printError(Serial);
) ~" b: P9 G2 N; _ - }
) F4 O9 r. s% k3 c2 c - } else if(upload.status == UPLOAD_FILE_END){
. |" k; U" R, q- v5 L, l+ _) h* ^( i) c - if(Update.end(true)){' Y9 F6 J0 v3 r$ w, S
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% Z J1 U7 ^4 _1 ^( D, D - } else {1 L3 s, I: O' q" V/ }
- Update.printError(Serial);: z3 p8 d! l" v, u; `/ A! a
- }! i8 u' V. t& `4 @! _( ~. y3 _
- Serial.setDebugOutput(false);
4 E+ J: E1 Q5 C- b9 r$ h, w1 J - }
( t8 f: h6 a0 u5 l5 l+ l/ p) {# N - yield(); d. C+ D5 z" g) A9 h+ K
- });
' B* U6 v0 d/ |9 p - 8 _# d+ J2 i" f8 o8 V& b6 p- o5 B* c9 W
- digitalWrite(2,0);
9 W0 x5 {7 |$ ~4 ~, K ~ - mainAction();
! A9 s7 k R0 Y9 C9 V& |* S. S - if (digitalRead(0)){) u& D: L/ `% U
- ESP.deepSleep(0);" R; C+ g% _4 L- i; g- g' H! }
- } else {, h1 L- X* e; U( O' D' E1 k& ^' H
- server.begin();5 m3 ~+ _" o0 @6 K, n$ }
- }
8 X. v& y; r% x5 q& H! k8 \ - }
6 m6 t# _2 s+ L7 A - void loop() {/ m6 ^; G% d& g- e7 ?5 m
- server.handleClient();# D7 h8 L/ j* J! H9 h5 z6 r% J
- delay(1);" J. j$ V1 ]4 z) @$ x$ |" |' @0 M
- }6 {9 M( D2 u, j0 v8 M) X% C
- String doGet(String url){
- E% w# K$ U2 ^- j% I - if ((WiFiMulti.run() == WL_CONNECTED)) {0 L( Q+ N8 h$ h7 g4 g
- HTTPClient http;
8 R& u0 ]: b1 D9 p) m6 Z( v h - Serial.println("[HTTP] begin...");
. t. k2 B: H1 d. ~5 z - if (url.startsWith("https")) {. }1 V% Z8 t' }, {! ]
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! N0 n( l& j9 n4 V7 }8 M9 k% p - } else {3 |: r. P/ Y( f( p: }
- http.begin(url);
7 d4 V( |5 [& Z5 T7 z# F4 p - }8 h" Q4 S# K- K4 Z
- Serial.println("[HTTP] GET...");5 ~3 p/ K; g5 `, t6 j7 D, M! c
- int httpCode = http.GET();8 c& h8 P, E9 n6 V3 S0 O
- if (httpCode > 0) {
8 z* i8 Z' w: _ - Serial.printf("[HTTP] code: %d\n", httpCode);8 T) n1 Y$ z/ z
- if (httpCode == HTTP_CODE_OK) {
W: P' N1 t' M- p3 T - String payload = http.getString();/ t9 D% B0 }4 S+ _' q( Y+ h" W
- Serial.println(payload);: T6 y: k0 w) v8 U% H3 Q
- Serial.print("\r\n");# p) `5 {8 o( E
- return payload;' f; ^: v1 X. x4 x: D: Z6 Y5 k' O2 V
- }6 _) N* o- \' ?3 f; @8 [; F
- } else {
( \7 y# h5 D m. I2 f. A - Serial.printf("[HTTP] GET... failed, error: %s\n",
! y1 r: z6 l+ r5 p - http.errorToString(httpCode).c_str());
/ A2 ?& l8 Y/ A- [- m# h - }1 W# n* Q, y/ Y2 ^
- http.end();
, r) e. u- U! u4 U) v8 g - return "";# E# [# M9 @! k- y1 h7 Z
- }
% L+ d5 R6 ?" G- c+ b1 D# V - }+ ?) S) @3 Z) b8 ~8 z3 r% |1 l* A
- void mainAction() {
4 L4 R& r+ \+ s' Q9 c - // 发送请求2 n) N- ]- s3 [0 Q# T
- doGet("http://google.cn");/ l4 C) e! s* T/ V+ d
- }
' E( d) M/ v4 X, ]4 J; I
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