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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). i: y0 ^1 S( `; x. z
- #include <ESP8266HTTPClient.h># }2 i6 U; I4 ~; m: P" `8 h
- #include <ESP8266WiFi.h>: j7 z5 b! X6 ]
- #include <ESP8266WiFiMulti.h>
$ [$ V1 w# Y Q: k3 g! }7 _ - #include <ESP8266WebServer.h>/ u$ j& H( H( l* ?; c
- #include <arduino.h>
( F: H* a+ M4 K/ {9 u# V4 ?2 U - ESP8266WiFiMulti WiFiMulti;
& g6 V6 B+ `& H+ a! C7 _, v$ D - ESP8266WebServer server(80);
; f2 Z/ |1 a* }* x - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- G$ M. Z5 o" s, t - ADC_MODE(ADC_VCC);8 U- d' \) o% @$ Q) G: {
- void setup() {
6 C! g! L& G4 O3 @3 R$ R - Serial.begin(115200);
" X: p) Q1 r) x7 [ - Serial.print("\r\n\n");9 ]' K9 m% V/ E, P. |) w
- pinMode(2,OUTPUT);
. m- v% N% Z3 h9 j( z - // WIFI1 Q$ i& `3 r" L& s; m% d
- WiFi.mode(WIFI_STA);
( K# u" `$ W: e - WiFi.hostname("Sparkle");9 N1 U) @$ r; x- N% @
- WiFiMulti.addAP("wifi ssid", "wifi password");4 J$ C! C5 \. O3 Z( ?( L2 a5 D
- int tryNum = 15;$ F8 O& `/ F4 b4 j, j
- Serial.print("Connect WiFi");
$ W9 [6 Q, e" j - while (WiFiMulti.run() != WL_CONNECTED) {8 Z: w! u0 v* y& r
- digitalWrite(2,0);! M: t6 Z2 d, M1 s, c( j
- delay(200);1 t& h% c& I# X' B: v. \) G
- digitalWrite(2,1);
0 R- h: w/ P" x9 a- | m - delay(300);
- F% H# |0 r0 V. u+ w - Serial.print(".");) [: K+ R3 h4 v
- tryNum--; a6 f5 b6 j$ h$ p
- if (tryNum == 0) {
5 w. H# q9 o$ Y6 h' g J2 { - // 1min
6 t: @8 a3 M* e/ a8 O6 }( p - // ESP.deepSleep(60e6);
# B; G+ S+ @4 _) t - ESP.deepSleep(0);: X4 e; I- ~; s$ i- [2 t# z2 {
- }2 w$ Y' u% @7 S& P+ T; A. \4 ?
- }( k2 p) g9 g& x4 }
- Serial.print("\r\n");
, d; g1 @! V( a1 _ - digitalWrite(2,1);
* l) v8 Z+ g. @; f - Serial.print("IP address : ");! C t$ @# \/ M% l) D' w
- Serial.println(WiFi.localIP());
8 j) X6 z& A3 f' V2 I5 u+ h - server.on("/", HTTP_GET, [](){
1 n! I7 k4 B7 u. [& [: _& D% Q8 G - server.sendHeader("Connection", "close");1 ?5 Y/ ~" Y, f4 w- R: K# h
- server.send(200, "text/html", serverIndex);
. k2 f, v# B+ q- d1 p1 o - });
) U! D' e1 K9 Y# e& T2 R - server.on("/update", HTTP_POST, [](){
, ]" F0 }9 }+ s - server.sendHeader("Connection", "close");7 F: w- O0 K! v; N
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ G5 u3 A- u F) y+ D3 N) O - ESP.restart();
6 r3 k: ^9 V5 {- A" Y- m - },[](){ y- d' @% e, D
- HTTPUpload& upload = server.upload();
" I/ \1 g8 v6 e; O5 J - if(upload.status == UPLOAD_FILE_START){; k- a, Q( v& @* i! \# f
- Serial.setDebugOutput(true);
8 F0 l7 {/ ]; M' ` - Serial.printf("Update: %s\n", upload.filename.c_str());
- p7 I; x8 {6 e- L% | - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 _. N2 `, P3 z. X: ~1 u - if(!Update.begin(maxSketchSpace)){
3 X+ A( i) }4 Y - Update.printError(Serial);$ |( { i, [& `% Z/ s
- }
& f6 N) |. L/ X) y - } else if(upload.status == UPLOAD_FILE_WRITE){
. R6 G0 R- h0 e$ k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( ]; C# n. {: c. X - Update.printError(Serial);
$ j. u, }( |" ?) r$ m' s7 V% p - }
9 r* m) u# i3 q9 a6 M - } else if(upload.status == UPLOAD_FILE_END){
1 y$ R! M6 N( n" w { - if(Update.end(true)){ }1 K7 ]* H" G- |* \+ K
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 Z6 V% I' L% d+ r
- } else {
3 @3 f# K5 V* l+ K6 {9 m, K* {4 Q( c - Update.printError(Serial);" v, }' X" f( ^/ F6 n
- }, @+ h2 R/ n- j( \6 [
- Serial.setDebugOutput(false);' a: j/ K3 ^' E5 x; J# }
- } d% _% ?2 b. H
- yield();) B5 B& q" a2 v5 Q6 ~; Q
- });
9 ?1 ^$ J) C- H% c" k5 x" ^ - 7 N: p2 a$ H' m& b" k) p
- digitalWrite(2,0);
3 e L' ]9 M1 P5 w- Q5 w3 r - mainAction();
0 R$ ]; ]% q, g' f0 A. ^. y2 L. K8 j - if (digitalRead(0)){! t. m! I; n; {! `
- ESP.deepSleep(0);
$ w5 B6 j% ] i. U - } else {! q5 _7 z" B6 k# f2 A3 F( y
- server.begin();$ G6 b6 e5 I, a
- }' G+ g" r$ k* A t
- }
. Y2 a- A' B! u - void loop() {
! a+ }9 X+ d* F; d5 h. _. u - server.handleClient();
$ S D1 ~; U% d0 i4 n - delay(1);1 A0 P1 I# q9 w& e8 Y( P d
- }
' a; S0 t2 B8 n/ D0 Q6 j4 z# N0 M2 \" \ - String doGet(String url){/ f8 j1 Q6 r) @6 ?8 }2 i$ C
- if ((WiFiMulti.run() == WL_CONNECTED)) {% ~( t- x: \! \. @1 x
- HTTPClient http;
8 C. A; [* U3 U2 E) O. ? - Serial.println("[HTTP] begin...");% C% w& C% t& d* y
- if (url.startsWith("https")) {
# s D/ @2 e$ |& ~8 [* x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 {, e8 `- R3 v5 G% }# r
- } else {
* V" `, ~5 X# H8 Y6 h - http.begin(url);
, |2 ~# l8 j$ b# X, { - }
& p4 M5 r4 \4 I8 t: N7 j - Serial.println("[HTTP] GET...");
1 R3 ]& ^6 G" D* B5 i( N# j7 G - int httpCode = http.GET();
+ M1 k, |8 H8 G8 E) W3 X$ G! d7 ]6 H - if (httpCode > 0) {( }* Z% e4 }; j3 z
- Serial.printf("[HTTP] code: %d\n", httpCode);& c9 G4 W/ r+ B2 P) M
- if (httpCode == HTTP_CODE_OK) {: G5 y6 a1 f$ B8 V3 b
- String payload = http.getString();# P3 `9 ~+ D$ e4 s* b; F" T1 T
- Serial.println(payload);
* S9 R5 w( @" z' _4 b* Y - Serial.print("\r\n");
1 o, W5 E z4 |. E3 `# q4 J - return payload;& I( P \: j; J1 k! d
- }
3 X) e1 r9 j! e - } else {$ m& y6 I7 d2 i; i
- Serial.printf("[HTTP] GET... failed, error: %s\n",; d( q# X: I- o
- http.errorToString(httpCode).c_str());
. j/ \' U1 J. Y2 f2 ~ - }+ g9 V& U1 Y, n4 L, U( V" b; ]
- http.end();& V7 `; B i' m9 R
- return "";
9 d& e0 H/ A# w4 T - }0 C8 c. E0 f) T0 z c( G1 N
- }
- N9 f8 U% f( Q3 i9 t3 @ - void mainAction() {
4 L- U6 F1 Y: U w4 A - // 发送请求
' I# U# w: S! W: b - doGet("http://google.cn");
- N9 \( E: Q9 B( u - }/ I* o8 r. k* _: ^# p: s6 ]- ^/ W, d
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