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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)* f2 k0 g+ M: X
- #include <ESP8266HTTPClient.h>' t# a( N7 l2 X$ A8 k+ b5 M
- #include <ESP8266WiFi.h>
; U2 w: [7 Q: i3 ~7 `8 W5 \ - #include <ESP8266WiFiMulti.h>
v" e! d# t; d( t$ O/ T' |& i8 ^7 q - #include <ESP8266WebServer.h>
0 [, H; b% d- m0 [' E - #include <arduino.h>
3 O- q2 Z% d8 M$ _' N6 H' T - ESP8266WiFiMulti WiFiMulti;
8 f* L) V- w$ C6 A! M/ } - ESP8266WebServer server(80);
8 F: e5 m5 |' R6 `, e, _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 K3 H( h7 W5 z1 h. L* n" x* @
- ADC_MODE(ADC_VCC);
8 c# T K* I% c' T; c! y - void setup() {
! \6 u8 \* k7 ^& f* J - Serial.begin(115200);
" b% ^. u v2 F5 f" U - Serial.print("\r\n\n");; F! Y+ S0 y% X! o
- pinMode(2,OUTPUT);
4 Y' j9 W5 y9 O. l - // WIFI0 M4 w. b7 H1 ^
- WiFi.mode(WIFI_STA);
9 {6 i4 P5 ~" f9 G( `" u - WiFi.hostname("Sparkle");
6 D' ]/ w. c# x" j6 a+ ` - WiFiMulti.addAP("wifi ssid", "wifi password");' S. e! Q. U: s2 n
- int tryNum = 15;
9 V5 v/ }$ t1 H - Serial.print("Connect WiFi");
) F L4 t0 _6 W1 K - while (WiFiMulti.run() != WL_CONNECTED) {& f8 v" e) M: i. p0 u
- digitalWrite(2,0);+ ^: Y% R4 R3 B& u, j
- delay(200);) x) ?( X$ C% \+ H& p# k
- digitalWrite(2,1);8 ^& T- |0 r* V( P: l* T
- delay(300);3 S- w+ {* O) ]* i# ]$ {- E1 k+ l4 Y
- Serial.print(".");
, Y: x- G4 C1 ^ - tryNum--;' n- S/ R- F0 a) X6 K/ @. P5 h6 l. o
- if (tryNum == 0) {
1 C1 d4 s- m( D) g+ v, T- b' p4 v - // 1min
; B( x, `$ M5 E8 U L/ g a% | - // ESP.deepSleep(60e6);
) l( _% h* Y; T% p! [8 J - ESP.deepSleep(0);* H7 J4 e/ p9 q% l2 B9 `5 x
- }( [: u5 V7 `' ^9 X F2 @- P+ L
- }5 G8 j) I% @, J0 t& Q
- Serial.print("\r\n");; K! g0 X, j( P) t% [
- digitalWrite(2,1);/ P6 B; C& Y9 B+ I- a9 K' [
- Serial.print("IP address : ");; C) H: d7 z! u7 ]$ N8 z) F
- Serial.println(WiFi.localIP());1 }: q* T2 @( x; c! W4 W2 P( {' ^# {6 O
- server.on("/", HTTP_GET, [](){
' r5 I: ~0 _* a1 d* j% S: Y; [. i - server.sendHeader("Connection", "close");
: r, G0 g4 E& o9 o4 ] - server.send(200, "text/html", serverIndex);' B# Z- c& l' U! j
- });" f- J1 @) C2 Z" B
- server.on("/update", HTTP_POST, [](){
4 H: m* G4 _: O8 h - server.sendHeader("Connection", "close");7 r+ r+ s' J% V& A' Y, i( s
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' O) N- l5 H2 }$ o - ESP.restart();4 ^; ?5 K" Y/ ?! }# H- p& @
- },[](){
( h3 h2 p0 P. P# Z' j2 _$ P - HTTPUpload& upload = server.upload();
" D. ?# D+ O: } - if(upload.status == UPLOAD_FILE_START){* c4 K7 x: d/ r' U& h7 Z
- Serial.setDebugOutput(true);. [( l( K! T. v! H) `# I1 X
- Serial.printf("Update: %s\n", upload.filename.c_str());% Z. C3 C/ g Y: i1 v- G% m
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& {' G. Q9 T# g5 d6 d/ e" W - if(!Update.begin(maxSketchSpace)){1 |2 y k' [2 ^0 f6 @; u
- Update.printError(Serial);$ O# G8 x/ x. U% a& u
- }
3 f2 h/ a- \6 ?' _/ Q - } else if(upload.status == UPLOAD_FILE_WRITE){6 e) H! r) a( w' {, f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ h6 ?, Z4 c0 k' x# ?+ H8 l
- Update.printError(Serial);
`0 k0 g. @+ t. D3 c, t& t/ t - }3 n* N* E( o6 _) m* L' W
- } else if(upload.status == UPLOAD_FILE_END){0 k3 g; U% h) I1 g! R' Q
- if(Update.end(true)){+ d: f Q/ L5 s( M* ]7 o& z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. |" Z/ x& w9 ]; z7 v- F - } else {
, v+ u. \7 S, l; k, ?# L! N6 Q5 T - Update.printError(Serial);
& Q9 s/ }$ ?- Q3 A: Q& S - }
0 c4 ?& U* M% l) a - Serial.setDebugOutput(false);
$ W# p0 R' F7 M" n2 U/ J - }
, w" ]( ~! w- r, A7 i0 u - yield();
5 M0 q( F* Q% }+ j8 H7 H; m( e - });
: R' \$ d2 ], m( r3 d - 4 m2 N( D+ ~8 X$ F/ `& ], O
- digitalWrite(2,0);/ I/ h, P: m- H# t# B5 b6 Z
- mainAction();- E) Z- ~+ l4 }( h! x' J
- if (digitalRead(0)){! W+ v; g! v5 d* [" \" B
- ESP.deepSleep(0);! ]' W! S- ^# D9 r( r) t" h
- } else {6 O$ T0 D& I* @ z
- server.begin();
# I" H4 x: U) M% M0 @ - }. X: a, k, _& ]( d
- }
+ p+ t) x0 Y4 z7 W& U - void loop() {
, x& E& W; N# M D8 Q6 `; M - server.handleClient();
% z6 {: y, p3 F9 q - delay(1);
+ H+ U2 b4 H5 e1 N" N - }
( L J$ B( J, l' V - String doGet(String url){" P! w( {) n& H% E
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 M5 l. g" L8 a, j - HTTPClient http;3 P5 S' S2 C4 |7 ~
- Serial.println("[HTTP] begin...");
. I- V) l$ y5 ^" m$ L6 m# r - if (url.startsWith("https")) {- y1 y5 G# w& ^$ I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 g8 |' I6 F* U6 o0 i6 r: r
- } else {
$ V3 z' u2 e+ @ - http.begin(url);
y2 M$ s: C5 f2 V - }
/ q$ Q8 [- w2 M7 |: M/ O. }0 [ - Serial.println("[HTTP] GET...");* @3 M5 Q$ B$ O& e- l
- int httpCode = http.GET();% z. S& e& A. ?& ~: b" P/ z
- if (httpCode > 0) {& V8 M0 }( ~/ X5 S$ U6 W
- Serial.printf("[HTTP] code: %d\n", httpCode);
9 X2 d8 t2 |9 T4 g - if (httpCode == HTTP_CODE_OK) {
+ o0 m2 f! y$ `/ \% M - String payload = http.getString();
7 t) Z) U( {# |, Q - Serial.println(payload);/ ]$ f/ K3 j3 y& N ^( }& J* u* x
- Serial.print("\r\n");
9 v& p4 ^% U- c8 E - return payload;
- r$ T3 t( C% y) F! Q - }
0 H$ h1 ]+ J" H1 G - } else {
5 v$ o* f* q. w4 V, V - Serial.printf("[HTTP] GET... failed, error: %s\n",) I2 r" d! S' V
- http.errorToString(httpCode).c_str());
% L: w) R# F3 ~2 G - }$ n( e; U9 e) K9 Z0 l
- http.end();
2 Z! P* T; J! d - return "";* E) v" H) R& k( n. m
- }
( c& j7 r0 X6 U9 ~$ x* a - } a+ A h) w5 Z5 P) q( {
- void mainAction() {3 `1 n$ K; q5 e$ ^
- // 发送请求
4 T# r0 o- z9 d" ]& `) V - doGet("http://google.cn");
0 f7 S. I5 w6 M! R6 V1 h - }& `3 ~: Q( Q/ H4 Z% I* m3 w8 W" D
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