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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 `. K" y6 p2 p: M [- #include <ESP8266HTTPClient.h>
8 g. s, o% O: D: e% L; `6 s - #include <ESP8266WiFi.h>. X6 P, d S% D: C& {
- #include <ESP8266WiFiMulti.h>
2 z% }* v# l4 ~ q5 f* P9 | - #include <ESP8266WebServer.h># U. f" S' i7 U' q' ]0 ?) G
- #include <arduino.h>
5 _9 C5 J/ d+ i5 z - ESP8266WiFiMulti WiFiMulti;
/ ]/ C( @5 i* u* E u1 j( } - ESP8266WebServer server(80);9 M' f. P. G3 [6 ?' k! {* `* A, K8 E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% ~4 i: A/ c( \' h
- ADC_MODE(ADC_VCC);
, B4 Q# g4 H! A2 F - void setup() {/ N7 m+ v2 q+ Q
- Serial.begin(115200);$ _) ~7 X# J3 _9 b& J
- Serial.print("\r\n\n");- ^8 U; |. d: \7 O& A" [
- pinMode(2,OUTPUT);
3 W# U% P' o' _9 j5 @/ U7 P! T - // WIFI
9 \/ ^, G3 L p% A: w6 @& ]$ T - WiFi.mode(WIFI_STA);
6 \6 g& q* g/ _" O% [+ T - WiFi.hostname("Sparkle");
" K4 \+ j! a: p. M - WiFiMulti.addAP("wifi ssid", "wifi password");2 [8 m5 `! ^( E; @
- int tryNum = 15;5 |" W3 d {& E j3 L
- Serial.print("Connect WiFi");% O) L& m" ?, I/ d; t
- while (WiFiMulti.run() != WL_CONNECTED) {
( t( s z; T+ _- c( j8 e. q - digitalWrite(2,0);
C w5 F, ~. W - delay(200);7 [, }( Q8 j5 A7 z
- digitalWrite(2,1);
+ z& @: D8 h0 x8 O+ r- A) ~ - delay(300);
i7 M1 c, d. b8 ~- z L% B - Serial.print(".");
' u- i8 ~% w, W' a+ F; S7 f - tryNum--;
8 n$ z# B: Y& S) L, u& r - if (tryNum == 0) {! ]. x% ]% d! h8 K
- // 1min
P2 k! ~" ?4 ]& I7 u3 P& ?% m3 B - // ESP.deepSleep(60e6);" N5 A; L: w4 I! e
- ESP.deepSleep(0);
, t* z R" r+ G. d - }
+ }* b4 {( p% {% N7 e1 S - }
% U7 B, j; y9 Q1 A$ s - Serial.print("\r\n");
b. f7 u! H+ g - digitalWrite(2,1);$ X) z+ D# h" z4 Q& J# u2 Q
- Serial.print("IP address : ");
* R( y5 S) Q2 _* N! {% ~( B - Serial.println(WiFi.localIP());8 E5 q) x* x# m6 L* Y
- server.on("/", HTTP_GET, [](){* q0 S% k3 M$ E
- server.sendHeader("Connection", "close");2 [+ K% f) N# ^' p0 ]; h
- server.send(200, "text/html", serverIndex);
" J! i; T8 q+ y$ _$ u/ y! x - });) G# \. Z; n8 O9 j8 a$ g1 v: q7 `0 d
- server.on("/update", HTTP_POST, [](){* t6 G/ I8 _& D, V/ ?$ | ^
- server.sendHeader("Connection", "close");# j5 m! x- r3 @1 g. ^" O" b; d! e2 [# p% @
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
A0 ?- B: K2 U% x/ F - ESP.restart();- I' Q7 ]5 F; U
- },[](){
7 i: H# Z3 U y) ?/ y3 x0 d - HTTPUpload& upload = server.upload();
5 P& R) p4 s8 e5 W4 _- f - if(upload.status == UPLOAD_FILE_START){
6 m0 a1 q/ a1 t7 W: z( H - Serial.setDebugOutput(true);9 ^0 C- V. D4 K/ h, D4 N; {. [
- Serial.printf("Update: %s\n", upload.filename.c_str());
: R* v! T& V2 ] - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 _! J, I/ J6 `1 u' Y' N
- if(!Update.begin(maxSketchSpace)){% j6 k( L9 u1 a
- Update.printError(Serial); C# C" f' r; ]0 `" x4 N
- }* ?/ r) v* w9 U {% x" Q
- } else if(upload.status == UPLOAD_FILE_WRITE){0 G/ h [5 Y+ ?- R4 I" ?: B; i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 Y1 P5 g0 ^& V8 H. I - Update.printError(Serial);
; {4 Z* f" Z6 f3 D5 f: v: E - }0 n# B9 ?: G0 e, W
- } else if(upload.status == UPLOAD_FILE_END){
3 o8 R, P- W7 t, x - if(Update.end(true)){. y/ N& f# H% W* y8 t3 _
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ Z! P- C$ a3 j, V; r
- } else {2 S5 ^2 f# h$ g; g5 [% v9 v! V4 [
- Update.printError(Serial);
8 ] o3 e* j, d/ J0 m, u6 G% \ - }/ `( z7 I, t& P4 e* p# d
- Serial.setDebugOutput(false);
( F+ n8 |) r) J T2 H5 u - }
; @9 Z0 d* g% H0 f. B - yield();3 K6 O9 n- A7 S1 V. {
- });. {* g0 U# G$ H1 G, O5 ]% E& F
- 7 d; k9 o" r u
- digitalWrite(2,0);
; @8 K* o% Q, C, l7 u. [1 j/ V" M - mainAction();
& e1 b$ `& V" r. a. N - if (digitalRead(0)){
4 ~/ s& \" h; N7 s. F - ESP.deepSleep(0);7 v1 S: e3 }' x
- } else {
) L j( t+ N! }! n1 H4 G9 j - server.begin();1 U6 } w: `! J* }' ] @
- }$ G% d, s2 { } P
- }
4 |, S+ e4 u; k% u7 r7 O - void loop() {
, W* ~5 u# Z$ G - server.handleClient();5 Q& {. Y' Z8 |. E
- delay(1);
8 ~) I! r3 @+ i9 r) J' f% ?' X/ c - }
- _. o! O `. {7 h; U$ F - String doGet(String url){7 e. G, t0 I, `' ~
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 [ |" D8 @& P - HTTPClient http;2 t1 {4 v3 B t; \" u! U
- Serial.println("[HTTP] begin...");6 b7 t4 U/ L6 u4 }/ q
- if (url.startsWith("https")) {' I! |# n; v$ n D6 Z! u9 U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% L4 E/ U- R0 l - } else {
0 Z) h4 Y; j) T5 i* }) ` - http.begin(url);, e5 T3 }( L a+ L8 s4 v9 t
- }
+ B0 h2 N: V4 o - Serial.println("[HTTP] GET...");9 b- q+ P/ N) y1 w
- int httpCode = http.GET();1 z3 z0 R; N2 P7 F, B
- if (httpCode > 0) {
8 `; s2 k7 T* i' h( S: n - Serial.printf("[HTTP] code: %d\n", httpCode);
2 p6 g) S3 I' E# K - if (httpCode == HTTP_CODE_OK) {
+ r1 q) K; f# b. y% ?0 ~ - String payload = http.getString();) H$ ]% J* I: _7 ^
- Serial.println(payload);% n t# {+ d, C! E& m/ h4 G, ]
- Serial.print("\r\n");
) F- r, t+ q, y i" Y5 @: l - return payload;
7 q: A& o% ~/ ^0 ^# ^ x* a - }
4 J* h3 b/ j; m. n3 K - } else {
4 r" F1 p3 W- a; x$ ? - Serial.printf("[HTTP] GET... failed, error: %s\n",/ F& u R( I5 h; k% ?: Q
- http.errorToString(httpCode).c_str());
/ P# ?- m0 {3 S, E* n& ] - }
# Y) I* }+ E: I$ n" G5 p5 X1 @* k - http.end();5 |% B8 r2 i ~# v/ U
- return "";$ r: P0 L( v5 y0 ^
- }
- L8 k! q% c: l, x - }6 S3 }! z0 e* u0 ], n2 s3 @0 v
- void mainAction() {
# P9 d( [+ f- _+ J) M5 @3 z! O: ? - // 发送请求
# y; V9 k7 G; i, |9 D* T+ x - doGet("http://google.cn");; n* O4 l$ w* q
- }
3 n r' E* g1 _; J
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