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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)/ n, A$ @. a! [& H
- #include <ESP8266HTTPClient.h>2 \5 U' [1 T; h1 Z( @' \
- #include <ESP8266WiFi.h>
b$ c+ I+ K. w7 H - #include <ESP8266WiFiMulti.h>
7 A& o7 c+ S0 z1 T - #include <ESP8266WebServer.h># z' @8 J6 U( s* A5 w& s
- #include <arduino.h>
; Y9 M$ K" u F+ x8 W& B) v - ESP8266WiFiMulti WiFiMulti;
' f& y a6 }6 E2 E - ESP8266WebServer server(80);
) {; C" j, Q' O, M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# \# p; V0 U/ a0 ?% ^6 i3 `
- ADC_MODE(ADC_VCC);9 g9 q G! W; j; H# ^
- void setup() {$ h1 @+ n0 m. s, n+ J7 z
- Serial.begin(115200);% d) ~. w% G" a3 {
- Serial.print("\r\n\n");
" R: W W5 Y9 f4 z - pinMode(2,OUTPUT);
0 S- l0 ~4 m/ w - // WIFI
* e/ ^$ N' D& F - WiFi.mode(WIFI_STA);
- \; S8 ~* B7 O' Z - WiFi.hostname("Sparkle");0 A$ y7 N: N% H+ |
- WiFiMulti.addAP("wifi ssid", "wifi password");
) w! B0 G5 _5 k - int tryNum = 15;* r/ ]. |+ ~* B g/ U4 V7 h d
- Serial.print("Connect WiFi");
+ \7 ?8 d( k! S, ` - while (WiFiMulti.run() != WL_CONNECTED) {! ~- J: @7 |/ D. O# ~; f
- digitalWrite(2,0);8 P; }5 A9 D$ ?; c
- delay(200);" {8 G$ M( v2 j( Y
- digitalWrite(2,1);
: A% W S* s; b - delay(300);0 t2 S# f7 q+ O
- Serial.print(".");
8 y. S+ O+ |& q" N - tryNum--;
- E3 D* j% n* I8 Y- v% I3 J6 e - if (tryNum == 0) {7 z* O6 v3 j' }: j; n
- // 1min2 g* V9 x2 _: O: q, m% Y" e
- // ESP.deepSleep(60e6);
i! O, k9 g2 g( y - ESP.deepSleep(0);
* e+ @/ h, o1 r* i1 T" k/ x/ \9 J - }
2 `/ q$ Y. z9 l% ` - }
8 U- F' g/ H. x' M - Serial.print("\r\n");
2 s" N+ K" Z' I: @3 q - digitalWrite(2,1);$ q, g8 h" G" u4 d8 i+ Q, V2 T
- Serial.print("IP address : ");
+ h: P$ H8 [+ Z" ]' }" [ - Serial.println(WiFi.localIP());
9 y: y9 q( v6 T" }* A4 n - server.on("/", HTTP_GET, [](){3 w5 f; q- O" A0 l$ U
- server.sendHeader("Connection", "close");
% K' `. C) o. w' R - server.send(200, "text/html", serverIndex);# W* L1 K W- S5 y4 _
- });
0 X$ X) s [ S+ H) c1 \ - server.on("/update", HTTP_POST, [](){
" E- y/ k9 F2 |4 O9 }+ x) g - server.sendHeader("Connection", "close");9 S5 S6 `( |4 o. h4 n/ u( F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, r' a! `& ^8 k/ u0 j! z9 E
- ESP.restart();
4 \5 b9 e, a( |9 D7 g - },[](){ `) i& Y; i; z2 |9 n
- HTTPUpload& upload = server.upload();5 ]' Q' u4 h3 k* U, ^# y. z! }% j9 v7 _
- if(upload.status == UPLOAD_FILE_START){
0 ?( J" j T+ f% p2 G - Serial.setDebugOutput(true);
3 E0 x! H- z/ p) I$ v - Serial.printf("Update: %s\n", upload.filename.c_str());
' j4 _/ F: s7 i* d+ C - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: I5 w8 C7 {: O/ r2 E. \1 @ - if(!Update.begin(maxSketchSpace)){/ y j+ _0 z$ g8 x& Y
- Update.printError(Serial);
/ M p1 x3 Z+ |9 d4 h - }
; M% Z- p" U( f* B - } else if(upload.status == UPLOAD_FILE_WRITE){
5 z% F$ P! k9 r. h - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 \9 \$ o1 |3 E6 Y' ~% t8 X; K - Update.printError(Serial);
7 B% v5 B: ~+ E7 |3 U/ O - }. d+ P- S' S! T- x7 A# I; N. s7 Q
- } else if(upload.status == UPLOAD_FILE_END){7 D9 B; j T! I& E5 I
- if(Update.end(true)){, |: F4 b* A, l) Q% Y! w# u% r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 j! R3 O/ W8 R# B% U- L
- } else {4 ]& e9 F9 Q, N' _: o) _5 |- j) T5 `
- Update.printError(Serial);
; Y6 v- D. a: Q5 r - }6 j1 F, j9 u3 J3 A) M" b4 x, W7 n3 z
- Serial.setDebugOutput(false);) v# V6 W6 o7 s1 x) q
- }) L+ B1 K* w' {6 d) J! d- }" o! I
- yield();
C: e# V. b7 W Z9 \" V( ^ - });- H/ a5 P- n b
- + X9 J. Y; T% h$ m: ~7 F9 o$ N
- digitalWrite(2,0);- _3 ] M7 `% J, {% n! z' M! g9 V
- mainAction();
; W4 E3 ?5 _7 R* B3 P - if (digitalRead(0)){
- t( s1 j3 c% b0 T3 e1 m - ESP.deepSleep(0);# U0 f6 u) S% T/ E! R
- } else {5 U. i2 ?' o: n" [8 w0 R/ i5 U
- server.begin();
! f& W5 K' O2 i) ?, @ - }$ J, Y* i) u' q" j
- }
' k! A# G& u8 S7 m5 ^ c - void loop() {' @. f( o R% G, ?
- server.handleClient();
5 o" \- a% l) F& G6 ]' D3 P - delay(1);2 Y7 h* l" ?$ s6 D- B
- }3 p: [- i9 X z! r& u+ D
- String doGet(String url){1 ]( K1 d" D0 t8 M4 c
- if ((WiFiMulti.run() == WL_CONNECTED)) {" V- Z- Y' p! e6 s T! r+ I {
- HTTPClient http;
, t% I' e0 I: O - Serial.println("[HTTP] begin...");
6 Z& y3 d& Z7 S# H- u* d - if (url.startsWith("https")) {
y6 W2 z. Q6 k+ M/ @5 T1 R - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 B2 f* ^5 {/ S8 u/ s8 ]9 G; [
- } else {
) ~- r' ^; H2 k4 |0 { - http.begin(url);
2 w) G( i7 x6 ?# @" X4 b$ g# Q - }- i+ y" ]% R9 f" B
- Serial.println("[HTTP] GET...");
_$ R) a6 @$ s% c6 L - int httpCode = http.GET();6 p/ H5 s, }, [7 t
- if (httpCode > 0) {1 Z' T/ K- {; \) N
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 z1 B, G8 G" v) N' j - if (httpCode == HTTP_CODE_OK) {7 ?6 M) q& n$ G. K3 p, F$ n
- String payload = http.getString();
7 T( ~, Y2 z$ @* r - Serial.println(payload);
% h9 b+ [6 j3 g5 F( B0 I1 A - Serial.print("\r\n");- S' |/ q Z) w7 y/ x
- return payload;6 b, x% ^ k, w5 a3 y' n- E
- }
- C5 T# Y+ n: j" @ - } else {6 V0 _8 A- J4 S! N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' U0 i& Z6 T& `9 b g4 F2 u - http.errorToString(httpCode).c_str());+ D4 ?& W4 `" H9 Y# E$ b8 @
- }
; v! Y9 ^' T( h7 O - http.end();3 f I0 P# z/ t! S, _2 ?3 K2 A/ r
- return "";5 A5 `$ z" D( ^: r3 \
- }' u0 s3 j0 T r# l7 q1 n# f
- }
* Q0 M4 c, G4 I: E3 G% } - void mainAction() {5 v/ c5 ]- a, X/ w; s
- // 发送请求
) @/ R0 q7 J H, O, X - doGet("http://google.cn");
4 L( ]+ p' \. |, C2 e6 @5 [* F - }) Z( G/ ^% I: F. M
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