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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)
$ Y" \7 u+ H: Y8 i- [- S- #include <ESP8266HTTPClient.h>
+ i8 `8 {: U s; u0 L - #include <ESP8266WiFi.h>
/ e/ {% Z, Z$ v; U1 C9 g - #include <ESP8266WiFiMulti.h>& r5 `; N) D. x* E& G
- #include <ESP8266WebServer.h>& N2 b0 e7 f5 U1 [4 z
- #include <arduino.h>
, f c u/ d0 W3 z5 I - ESP8266WiFiMulti WiFiMulti;
. X9 J& M3 r3 j0 P - ESP8266WebServer server(80);
L0 `* |. n ] A7 H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- v# F/ k% N( P& a. |: M9 v. G
- ADC_MODE(ADC_VCC);, V0 E9 t% N# U9 I# [
- void setup() {
; |) {& T, I; `2 k - Serial.begin(115200);0 {' t, }0 Y' k
- Serial.print("\r\n\n");
K* |. v7 {+ I% d: c+ ~8 Y, t - pinMode(2,OUTPUT);5 z( T; w* g6 T/ _7 f/ l4 c
- // WIFI
5 c6 V8 u) }+ B4 w' `8 k0 \) t - WiFi.mode(WIFI_STA);4 M! q9 d' j: K0 a9 |7 o
- WiFi.hostname("Sparkle");
! T8 j0 n$ G0 B( c - WiFiMulti.addAP("wifi ssid", "wifi password");& O: e. |, e3 _+ T( E" ?$ h8 P' A
- int tryNum = 15;
" Z' j9 B! S4 H. `. ]% D - Serial.print("Connect WiFi");
% j$ X' | _3 J - while (WiFiMulti.run() != WL_CONNECTED) {
6 ]' V6 J. ?9 `& ^. q( R - digitalWrite(2,0);' Y; {" ?9 r0 P
- delay(200);$ Q J) ]1 O( u3 }0 b
- digitalWrite(2,1);% [" V2 O E# S
- delay(300);
( b# I( _$ s3 H$ L' b# u, N6 Z - Serial.print(".");: d0 L; l" @# q6 {' v1 }; G+ k; B
- tryNum--;+ U5 o$ o- h0 a2 P7 N7 C3 B+ ~. r4 [
- if (tryNum == 0) {
# r( a, y+ P+ q0 Y& f1 q& z# Y - // 1min
4 @0 t8 v# @6 w - // ESP.deepSleep(60e6);% o9 e- m0 G. f W
- ESP.deepSleep(0);1 y! ~# B4 T& N, j" F4 V4 x
- }' ~- u: p: g3 V" t: j+ s
- }
: e2 O$ x. F" h" M, G - Serial.print("\r\n");( J! X- e; j5 l9 E/ g7 f7 e
- digitalWrite(2,1);
$ ~' Y: O5 {2 Y, p2 [. Q* Q - Serial.print("IP address : ");& N0 v. e7 V4 H( I* r; F8 b7 [
- Serial.println(WiFi.localIP());/ p3 A9 F) U3 o0 a8 j- D
- server.on("/", HTTP_GET, [](){
% Z% F) S" _9 q# f2 L2 t+ C/ } - server.sendHeader("Connection", "close");
8 G% `# P- ?' [2 ]' R {+ C# c9 ] - server.send(200, "text/html", serverIndex);
x' C1 U. ^9 j8 V" R - });
4 _* C7 F! l' ~/ L! }1 x, O9 l - server.on("/update", HTTP_POST, [](){; F9 N; a1 s2 C0 ~8 v2 t
- server.sendHeader("Connection", "close");
& g4 A U$ Y% ~) } - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* l/ N: U& Q# g6 V1 w1 ]4 o+ ?
- ESP.restart();3 n0 s8 V8 q$ O9 I- L
- },[](){7 |' |9 b0 p9 L5 _
- HTTPUpload& upload = server.upload();9 a2 ?% g1 p9 X
- if(upload.status == UPLOAD_FILE_START){7 Q. B7 i' C/ D
- Serial.setDebugOutput(true);
) v; O; s" ?7 Z ]; |) R. p - Serial.printf("Update: %s\n", upload.filename.c_str());4 |1 O/ e3 O$ I5 ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 q- u- V* p# y% h# P
- if(!Update.begin(maxSketchSpace)){
" K1 G" [2 m9 i& I% b5 R - Update.printError(Serial);/ p7 c1 K0 U7 u, C1 O7 y$ Z: w
- }
2 r$ R" `8 m) D' D9 U5 x& s" X - } else if(upload.status == UPLOAD_FILE_WRITE){
; s" K) K4 e" i( [( t. h2 O2 j - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) p) Q1 }- J, p( t. H# A
- Update.printError(Serial);
8 ~5 T8 \: u9 _! M3 A4 \ - }/ k* b1 g; ?7 n/ p3 a
- } else if(upload.status == UPLOAD_FILE_END){4 @+ o* T; q+ e; p; d& F
- if(Update.end(true)){
2 }- X& g7 S V! ^; Z6 B) q% F - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ q4 S! C& q6 m" ?& g$ A8 P - } else {
( V, e- Z' E' ~: P( Y3 F' h - Update.printError(Serial);
. A q* }) q# A8 x: e - }7 i. ]! P9 N7 p' C
- Serial.setDebugOutput(false);2 O! L: E6 |- k1 v, v- ?6 D7 k" `6 A
- }
, ~9 Q1 d! X( u D: m - yield();
7 C* M* D. s* t1 ~' r - });
% w2 X R v$ A( z4 F" H0 c6 b, W5 n7 B - ! z/ N9 q2 T Z0 Q8 Z
- digitalWrite(2,0);, n( V: H# H+ g2 ?% T# b U
- mainAction();6 H$ |7 m- Z' x: L& V8 C$ s L- e
- if (digitalRead(0)){ x6 x) b, C9 v
- ESP.deepSleep(0);
6 d2 h/ n8 A# j5 u7 i - } else {0 k5 q8 R6 S( v0 d2 t: v( V6 V9 ^
- server.begin();
2 L# s7 R1 g! q# O& ^8 R' ? - }
* ^' d3 y' j# u - }5 E/ R [& ] ^6 o( \
- void loop() {( D! e9 m7 ^8 x h4 R: ]; W+ i0 e1 A
- server.handleClient();
$ E4 g: H0 f4 Z- \4 x - delay(1);
/ c- `+ y! t0 |3 B. j, @/ f" \ - }$ a) Q, {( k$ P" ?
- String doGet(String url){$ W [( b6 X, Q( Y) ]$ m
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 M3 _/ R4 I; c3 v9 U, h - HTTPClient http;4 M' V; x- H( }; X0 \8 z& ~. b9 @1 U: A
- Serial.println("[HTTP] begin...");4 Y7 ~: {, W, Z+ T
- if (url.startsWith("https")) {) a0 P4 i% ]( \$ P- ^1 k
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! `9 R5 q) ]9 `7 e9 S, U V - } else {8 M! F0 h! {/ B2 N+ r
- http.begin(url);
) G+ K9 H$ I5 o. S7 J. J2 w- t0 h - }7 X' W2 Z% n, I' V6 B
- Serial.println("[HTTP] GET...");
. P2 J: K% A) ]1 N - int httpCode = http.GET();
+ }1 _- C6 i6 A3 X - if (httpCode > 0) {% n$ h; q5 p) L) x
- Serial.printf("[HTTP] code: %d\n", httpCode);
" ^# L: ?' c5 b' H$ R - if (httpCode == HTTP_CODE_OK) {
8 \0 r7 {# u3 o% g - String payload = http.getString();
) M2 b& m& o$ C, T. x - Serial.println(payload);! d, d+ H6 b) y3 v1 u/ c
- Serial.print("\r\n");
) y2 W! N z1 t1 o" x& V7 y; z1 X - return payload;5 c0 y6 k- H& v2 p
- }
/ k2 x; n! t7 ?) m8 j9 V - } else {
V+ D9 R7 U6 x. Y% a - Serial.printf("[HTTP] GET... failed, error: %s\n",& M* g& i) \3 _' |' l) |0 X& O6 y
- http.errorToString(httpCode).c_str());
& e. j! Q+ E5 u: e" I, h: H3 Y - }) ~3 b5 H$ j% J/ ]- b+ `$ p
- http.end();. T- X( H1 v# R" {
- return "";
+ l- H$ a3 B7 v - }
/ B$ C2 j5 r1 U' o; x4 A4 D - }
7 a' v X) N# |4 C. {5 E - void mainAction() {, h# V% C7 ?$ I$ S% Q6 Z& x$ L8 t
- // 发送请求
/ C. S$ m' U+ l5 G0 i - doGet("http://google.cn");1 J* o1 s- x" [( \' Z$ z8 O
- }
; U2 c Y1 {# _5 K, o8 [
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