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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)
1 z6 C. |$ Z* b) x- #include <ESP8266HTTPClient.h>
# v% h* l, l* p$ s) ~/ F9 W6 ` - #include <ESP8266WiFi.h>
1 |* g% Z3 Q* K- B. O - #include <ESP8266WiFiMulti.h>
- Z" @: m o' J5 \- b - #include <ESP8266WebServer.h>
0 Y8 O# q4 P0 d. z - #include <arduino.h>2 N. m2 @+ y. _6 J: b, _! B; h7 E. Y
- ESP8266WiFiMulti WiFiMulti;# v Q) p3 T, g8 n4 g" q, _, Z
- ESP8266WebServer server(80);
! R2 i" q5 l9 b$ K* \, m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 r: t# v/ q% w3 o
- ADC_MODE(ADC_VCC);
. D7 ~5 o" i9 R3 ?" H. L - void setup() {! `4 ^) h1 v/ g: `- Z+ p- L
- Serial.begin(115200);
# l* _( |. o# o1 b - Serial.print("\r\n\n");
1 d# ~; _: z& @ - pinMode(2,OUTPUT);
2 v. e8 W* V+ d/ c. W/ C - // WIFI
! _8 s; L( U, }) X1 ] - WiFi.mode(WIFI_STA);) Y& t1 N6 U* S) `9 E' w) R! g7 }8 ^
- WiFi.hostname("Sparkle");
% z$ p& t, X" B - WiFiMulti.addAP("wifi ssid", "wifi password");
9 L* o. A! T" Z - int tryNum = 15;
/ t5 Y: g1 J d e0 f - Serial.print("Connect WiFi");
6 q% x# S% [1 i9 e# V - while (WiFiMulti.run() != WL_CONNECTED) { {9 e6 F* f! r$ A0 X# q
- digitalWrite(2,0);7 e: o6 j1 X4 C. |7 O5 _9 s
- delay(200);/ F: |( q2 M; s7 u; o; f9 f7 D
- digitalWrite(2,1);8 `; v% ]6 b$ C% O. `. {" O' P
- delay(300);
2 `5 E- S% v3 H - Serial.print(".");7 r$ J5 p0 p7 D" K
- tryNum--;
, [6 U5 x' f3 a7 d, J- l - if (tryNum == 0) {
% z2 ?! i$ x' {5 F/ s3 A1 h9 \3 e - // 1min
+ M2 z! ?/ c4 b, m8 H - // ESP.deepSleep(60e6);) U6 q3 y9 n# Q( ]9 Y! c* ?8 Q( u
- ESP.deepSleep(0);
0 Y3 ]- ~; H, q7 a2 g9 ~ - }# n: d, c' s5 R0 B( l( S- u
- }
# n' O0 C# v7 U# N9 k) Y- e, s - Serial.print("\r\n");8 n! S% R5 k4 y0 Q( M
- digitalWrite(2,1);6 i6 m; V3 e( |. g* I: }5 R: g
- Serial.print("IP address : ");
2 C7 I( V( X- j3 C" M7 P8 x - Serial.println(WiFi.localIP());
) Y0 `. L- N7 Y! U, \% V2 Y - server.on("/", HTTP_GET, [](){; e3 C I7 l' V( X, S# ?; {
- server.sendHeader("Connection", "close");7 h& O2 K& w& _
- server.send(200, "text/html", serverIndex);
- I: ~' `8 \9 @- j) g: r2 k - });/ K0 F2 u- I) f4 `6 T W1 v
- server.on("/update", HTTP_POST, [](){
: r3 i; q8 ?7 z3 a% z* y - server.sendHeader("Connection", "close");
% ?; D# B M/ K$ M' s# r$ L% S7 m - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
; v: q* c% S& m& O) N9 s& T - ESP.restart();) ]. R0 v& W5 b& b# }) i3 ~! N
- },[](){
: h+ ?$ |8 f& V3 Y - HTTPUpload& upload = server.upload();
' s2 H- @; a7 U- w/ Y/ h3 f - if(upload.status == UPLOAD_FILE_START){9 b' b! U3 I. f# H
- Serial.setDebugOutput(true);% @, W. \2 w0 j+ _
- Serial.printf("Update: %s\n", upload.filename.c_str());
M B9 C0 V, l: C - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 l3 Z& E+ G( V0 F
- if(!Update.begin(maxSketchSpace)){
# ] q! r. d7 M - Update.printError(Serial);* w R8 f c$ V4 S* q) j$ f8 w
- }8 \1 H/ U( v6 L& K
- } else if(upload.status == UPLOAD_FILE_WRITE){: s/ Z& V6 i2 ^% S; b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* R" r) v" g- Z5 m" J0 t - Update.printError(Serial);. d4 e. k1 Z) R0 [4 T
- }; G1 @5 f* g& r2 v2 n
- } else if(upload.status == UPLOAD_FILE_END){/ ]& w! z$ e$ k1 o7 M
- if(Update.end(true)){
2 o7 E0 [/ Q- e8 u( r8 J" E% r9 q8 i5 z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 }: b) Y- D5 X4 T n1 g$ S0 C - } else {2 Z; K5 ^4 V3 n* W4 ^4 ~
- Update.printError(Serial);
0 b9 o6 X/ a4 I) s - }
+ Y! Y% D+ O' d% W4 \) A' y - Serial.setDebugOutput(false);" t% f3 g1 D# K( R% H
- }
- A( H2 z3 A0 @ y - yield();2 V" Z) U. P2 b$ ?* ~1 V+ O
- });" `8 O; R% |- G# m
-
! n% T" X! s5 M7 I( | - digitalWrite(2,0);6 ?" j6 W* p, t5 ^
- mainAction();9 l9 _0 n* Q. I4 J: p1 N* N8 k) h
- if (digitalRead(0)){+ o% C. C* n$ U- E5 _" s+ y
- ESP.deepSleep(0);
- z$ D K5 q- l7 n( K - } else {) V4 C y7 v$ m
- server.begin();
$ R1 s, ^5 _4 C+ T; [' r - }' P; m R9 a% e8 A2 |
- }
: k( Q! \2 W/ _4 h - void loop() {
c5 Z& o5 I: U; ]; a/ R - server.handleClient();
: c" N* x8 V7 G, S6 d - delay(1);
0 ^, ^7 Z) \* K( \ - }
: Z u: }9 S! R2 @& Q) P8 P - String doGet(String url){) S& f j9 A- h- G1 ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 T0 D" j- y, a* r - HTTPClient http;
1 r$ n" z! v+ w8 L% I6 ~0 w/ U - Serial.println("[HTTP] begin...");
) k$ t, E- C0 o1 G$ k - if (url.startsWith("https")) {
) k, V: k# ^* t( w# r - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 Q% Z3 u9 Y9 T( J [ - } else {1 A! K k2 l8 ~! r" u
- http.begin(url);
1 G4 T0 H% ~) u" i6 \" n$ N: p4 v - }
. M- D1 q, @* e; L - Serial.println("[HTTP] GET...");
* x$ Z+ y, h- [: t% e' K) w; {% F - int httpCode = http.GET();* u6 h4 _8 O5 d$ V% W( C
- if (httpCode > 0) {
8 N3 {4 |/ I2 h2 y; r - Serial.printf("[HTTP] code: %d\n", httpCode);
0 N& T* ?$ w. I8 @" x! W, k( o9 d7 d - if (httpCode == HTTP_CODE_OK) {( I! @, o& f( d) W: x8 M9 ]. s# b
- String payload = http.getString();
/ O: D* S$ B- q0 F1 y4 X, C( A" N, o - Serial.println(payload);
- g* F0 m9 L, Y6 ]9 ` T - Serial.print("\r\n");
+ q. X; s+ ]+ h5 f- G7 J - return payload;
' p+ S& `: ^2 d - }
6 v% h, I. s- [- W - } else {
, J! Z, F: @7 B2 U - Serial.printf("[HTTP] GET... failed, error: %s\n",- q. K4 J$ j* R/ P! v
- http.errorToString(httpCode).c_str());
1 n9 j) {" r$ L# `; f - }$ Q; L7 x" P X/ C: d+ J* n: V
- http.end();
^: K$ ~; m" C& T, j, J, G% X - return "";& d4 N; e7 Y/ f. ]
- }
6 S4 p& s2 r' V" h2 Q - }
( I4 s6 Y: ]. F1 ?; O4 N - void mainAction() {% Z2 P" S- n( L' \
- // 发送请求% J( G" t9 E0 C" {6 G
- doGet("http://google.cn");0 L4 p# ^* g3 ^ n
- }
- {* w1 M5 Q6 v/ h( A
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