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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)
( B9 H0 m$ i8 E0 D6 Y$ ~- #include <ESP8266HTTPClient.h>
) W2 B- Y+ M7 O# H5 Z - #include <ESP8266WiFi.h>
$ f. e: X, u5 R. I( y' n! M - #include <ESP8266WiFiMulti.h>
' u, a L2 G% b4 }. r - #include <ESP8266WebServer.h>5 F; ~* u' Y* V; x8 r" K
- #include <arduino.h>
& X; f2 y0 |+ n& p - ESP8266WiFiMulti WiFiMulti;
' y1 X/ K0 P, m+ L - ESP8266WebServer server(80);2 h( {; l3 r- s; w2 ^- _
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% q9 m, p7 x/ c' _. q4 O1 l) G - ADC_MODE(ADC_VCC);
6 _ _3 X4 T' w0 p - void setup() {) a) ^1 w o5 D/ M
- Serial.begin(115200);
9 i9 w4 w4 z' g: p: ]* j - Serial.print("\r\n\n");8 |$ W- U# k- v" M/ {* `8 M
- pinMode(2,OUTPUT);# p, e. o/ K, G0 Y- c
- // WIFI# z; n3 P- O) `3 J
- WiFi.mode(WIFI_STA);6 i+ Z/ h; q" V3 A( g9 _! A, y
- WiFi.hostname("Sparkle");3 J' X0 a: X- N+ A# E! J, D4 C3 L
- WiFiMulti.addAP("wifi ssid", "wifi password");
" _: j+ d* Q4 g' d- } - int tryNum = 15;4 U, j" [4 H* D- L
- Serial.print("Connect WiFi");2 n }! g6 Q/ W& d8 X! W" M
- while (WiFiMulti.run() != WL_CONNECTED) {
9 K8 Q4 u# X2 c5 ?; S: j. r - digitalWrite(2,0);. u1 c' w" d: X2 E
- delay(200);
, G, G( m6 z% C h$ e1 H. z( E& r' O/ x - digitalWrite(2,1);
t K6 c# Y- I/ D4 c - delay(300);6 G% V0 T# \- O q# u
- Serial.print(".");
5 N1 b+ c% S9 z3 U( K - tryNum--;0 r; p! `8 l: ~6 g
- if (tryNum == 0) {9 i. m0 H5 g6 x+ x; p
- // 1min
: w; t' j/ e6 s - // ESP.deepSleep(60e6);1 F$ c& Z2 _8 G" @9 z- C/ D
- ESP.deepSleep(0);
- x2 D* k3 F* v u/ D - }+ n8 r7 t' ~# i4 g, d: B
- }
, ~* N' o6 j# d3 S4 f - Serial.print("\r\n");
& z! C% P8 J" a8 f: ^* X - digitalWrite(2,1);5 l0 l7 d8 C) m7 r* }
- Serial.print("IP address : ");
, n1 R; h0 _1 |! J S! e1 o, P - Serial.println(WiFi.localIP());" d8 U' O+ s! p) y
- server.on("/", HTTP_GET, [](){
0 i: ~" c) Z) x1 S - server.sendHeader("Connection", "close");" c% T- }: V7 y- F! k% j
- server.send(200, "text/html", serverIndex);& Z, L& K& o4 ~" h
- });2 [7 c- k+ S5 I- a
- server.on("/update", HTTP_POST, [](){
- z ?! U+ @5 N$ h6 w; R$ o. z) M( j - server.sendHeader("Connection", "close");. h; Y% \6 ~0 `& l' O6 c
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ \) c3 H. k, A; D% _7 p# @1 K
- ESP.restart();
4 D% P4 X. H) X - },[](){
! q& y0 Q! R& x' f& |, a - HTTPUpload& upload = server.upload();
4 F% k0 E- U4 V3 C' S) F - if(upload.status == UPLOAD_FILE_START){
5 a# @. l; }# s+ j1 i" F* I% s2 p - Serial.setDebugOutput(true);; T1 b/ \' \) j- U- l
- Serial.printf("Update: %s\n", upload.filename.c_str());0 t5 g% ^; a7 E' J5 `/ J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 C1 p* B# M& \' g& }
- if(!Update.begin(maxSketchSpace)){- D' \6 d, s3 o( o, L
- Update.printError(Serial);
5 {2 M5 L$ D3 Y/ _+ N3 Q - }7 c$ _, x I5 i7 F5 b0 H
- } else if(upload.status == UPLOAD_FILE_WRITE){
, r7 a$ ~7 I k [" F4 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. v! ^8 l5 V$ s5 m* {7 U
- Update.printError(Serial);
& e$ M2 o3 z' `/ F; y g+ a - }) j( X9 x, k7 k$ g
- } else if(upload.status == UPLOAD_FILE_END){
0 k. S# i8 m$ i7 Y L - if(Update.end(true)){4 q# o9 F9 z( `6 {4 `: _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ y: |& w/ ~7 E' s" y - } else {* }, O7 ~/ w8 c
- Update.printError(Serial);
( v0 `3 H5 X% t# P - }+ G3 F( _7 I g) F9 U
- Serial.setDebugOutput(false);8 ]! K2 U. ]$ | u3 v9 e
- }: Y. Q/ N+ G) x( c; A
- yield();
' l8 m8 Q$ P7 Q6 H+ `6 u - });- `8 s! m" @0 P: L7 f' S8 l
- - Z* w8 T8 |7 D$ e- h9 }& R) R
- digitalWrite(2,0);
+ `# y; {" F8 | e; a - mainAction();7 C3 ]; N& l+ J* W
- if (digitalRead(0)){/ |, c3 G$ n2 \
- ESP.deepSleep(0);( J. g N) S7 d; @5 t
- } else {0 f: v( ?6 ?: @0 |
- server.begin();
4 x' ?: J0 W L3 u - } X; i' ]6 M* }! E% O; G
- }% r; _- X+ X- @6 G3 u8 u1 z
- void loop() {, {0 i! T! K2 G9 Q/ K6 A; ^
- server.handleClient();" b! y f4 N1 e& f7 Y3 K/ V
- delay(1);
( z( ^4 U( K3 g& {! _ - }
! b4 Z s3 v+ v) E; c1 x - String doGet(String url){
0 ?$ i; k8 h/ [- Y - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 Q6 p7 ]( g/ U2 R4 ^- w2 `0 q - HTTPClient http;) F% n- i4 D* D. N+ S' x/ {$ ?
- Serial.println("[HTTP] begin...");
- n0 q0 t, d. i ~3 s' Q - if (url.startsWith("https")) {) d- |( x. U. _! y3 z* }4 k' Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% ^& `/ i3 l5 L7 t' z* W- S - } else {
/ l! q5 s4 o7 `" y, t; R - http.begin(url); \4 @ }) v" t+ q8 B- {: x, w
- }
, c! ?. h; O0 w9 q/ g) [ - Serial.println("[HTTP] GET...");, q! N b: S6 z! x
- int httpCode = http.GET();
1 `- K, @( I% ]5 ~ - if (httpCode > 0) {: J. z8 _- V1 [2 E8 k, y& b
- Serial.printf("[HTTP] code: %d\n", httpCode);
& l- ]) V8 v9 U0 Z4 q8 H - if (httpCode == HTTP_CODE_OK) {8 y' \; y" |, C: A7 j
- String payload = http.getString();7 P$ n( J# E' x9 X8 v: `
- Serial.println(payload);
# g1 \, b; v- u' J" D3 ~3 W - Serial.print("\r\n");
9 A+ V7 e! I. B `. w) Z - return payload;
6 E( z0 ?/ o* t - }
4 \, p0 t3 ?7 r9 k0 L - } else {. O8 A9 d: `3 N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; a$ Z( r! a' y, V5 { - http.errorToString(httpCode).c_str());9 i+ r0 D. P6 F: ]3 k4 |, j
- }
6 q. z5 a0 q) [4 h \$ _ - http.end();
L7 R- l1 X, @ Q1 R: d. m% }: y: g - return "";
* i; b6 h1 I( R) P2 k - }4 D, x. E" J& Y/ F, t
- }/ d+ Z, o, q* `9 m
- void mainAction() {$ Q% T7 o; b% M- ~8 |4 }
- // 发送请求( Y0 n6 B6 s+ l. g5 N7 R
- doGet("http://google.cn");( \$ H; t4 X7 P2 f- f
- }
4 [6 H' S0 ~- O
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