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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); g- k7 Q7 c% z% f, V+ D
- #include <ESP8266HTTPClient.h>+ ]' t5 @+ R# ?0 b( s" Q
- #include <ESP8266WiFi.h>) j2 ?4 \, ] j+ H8 B! @ b/ p5 c
- #include <ESP8266WiFiMulti.h>6 V. x, E0 T6 O0 A/ J# \4 V/ z
- #include <ESP8266WebServer.h>
2 O; E3 y4 z q9 M( B( I - #include <arduino.h>
% @/ b* h( L' a# R# K - ESP8266WiFiMulti WiFiMulti;
$ L/ ^3 x9 W7 C$ r; ~ - ESP8266WebServer server(80);
+ n6 d! M6 D+ |. f0 }* M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; g5 y1 \+ h; ] d& `7 ` - ADC_MODE(ADC_VCC);9 m9 @0 |: Z' z! H$ U' o
- void setup() {
4 o5 K0 Z8 B0 A2 T" T/ \ - Serial.begin(115200);
- f+ x/ z% Q+ ?- G- N! g- W - Serial.print("\r\n\n");7 Q" ~9 c1 n) }+ ~
- pinMode(2,OUTPUT);9 F( g/ C' U; l) t! G2 T8 a
- // WIFI1 \$ \+ p6 L( J3 Z$ l/ A9 q
- WiFi.mode(WIFI_STA);$ \- B# Z' d4 w5 N* R8 B. q
- WiFi.hostname("Sparkle");2 c s2 v5 ^3 K* v- d3 N6 A
- WiFiMulti.addAP("wifi ssid", "wifi password");
: {% T6 j1 U1 X* N+ K - int tryNum = 15;% i1 I3 c: A0 F
- Serial.print("Connect WiFi");
6 v0 }6 W" [ a) ?( p( C. `! G - while (WiFiMulti.run() != WL_CONNECTED) {; t5 l# |+ ~' M3 _
- digitalWrite(2,0);
+ y% o3 v1 ?% q- R, A - delay(200);
; J" s- V$ A; T* w( Q* t0 T% t - digitalWrite(2,1);. G$ e3 }5 V; j+ r# m3 i l
- delay(300);
; J* x' Z5 R, R( s5 s; g/ k - Serial.print(".");
; R# [) ?# k, G: ^: H* E& Z, T - tryNum--;
# _% M. Y3 m& ~ - if (tryNum == 0) {# H$ }. l" u4 q4 O: w, ^
- // 1min4 P2 Y( \( P# M% Q3 A3 V% _8 {: M1 c- \
- // ESP.deepSleep(60e6);
! C/ O; e1 w+ N - ESP.deepSleep(0); `: C L- q" a8 `
- }
0 v+ A$ K) P- O0 P t3 ]) Z( }0 ] - }! x( }1 x7 n. A
- Serial.print("\r\n");
2 l1 H* E, z. d8 A - digitalWrite(2,1);7 ^2 ^4 }% F+ }) a
- Serial.print("IP address : ");
$ r4 B: A9 N, D _# Q - Serial.println(WiFi.localIP()); n3 }( t5 d) G4 S! F0 z& N
- server.on("/", HTTP_GET, [](){
z' c4 z1 t* ~) s - server.sendHeader("Connection", "close");6 a6 C W$ a# Y& j
- server.send(200, "text/html", serverIndex);
5 V# O& _! o! h# k6 }( a7 A - }); t! Z1 m8 b6 }9 _# D
- server.on("/update", HTTP_POST, [](){+ _# J) H( z5 {+ D5 F6 N- j. J$ q
- server.sendHeader("Connection", "close");
. v6 J$ R) ]$ N7 I s- f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 W6 {# v0 l( ~" ]
- ESP.restart();
& F% k$ U0 ]* I/ C* e3 w. e" A) N - },[](){
4 U. D' D. m' ?, B1 ^ - HTTPUpload& upload = server.upload(); Z9 C9 Q; r+ R+ K6 R# ]- g' F
- if(upload.status == UPLOAD_FILE_START){/ z1 z: P7 ?. h# @& e# T/ f7 W
- Serial.setDebugOutput(true);
5 }3 ^1 y9 X; v! }) z0 E0 x+ | - Serial.printf("Update: %s\n", upload.filename.c_str());; q2 n- C+ ]+ a6 b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: u4 a' q( M0 B+ B8 p' F, @ `$ Q L
- if(!Update.begin(maxSketchSpace)){ k8 R1 a: Z( b$ ~* S, m
- Update.printError(Serial);
- \; i, o: C; L ]3 H( O1 O2 d - }9 G2 T% a6 H, f& S1 {& ^ V
- } else if(upload.status == UPLOAD_FILE_WRITE){
* G3 g: F: T2 n& z4 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 r7 {+ X+ Q- g A2 u - Update.printError(Serial);( n. E6 i0 P* [8 r3 z
- }4 k A- T% U) \
- } else if(upload.status == UPLOAD_FILE_END){8 q! J' a0 L, y' o0 w
- if(Update.end(true)){) p5 m' m* d9 m. K/ U/ \ E; M, v; \2 z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* V, @& e- F& o5 E/ m - } else {
1 [& N2 G$ C8 `1 m: I- X( J - Update.printError(Serial);( p! f+ @+ e1 _4 d, H& M+ E& \# H3 w
- }
n, Y3 x2 p' X# b4 C) c - Serial.setDebugOutput(false);
! P- w- a, E* p; | - }
' q$ p) ~! W# D; `; q/ {3 D9 } - yield();4 l1 x- ]0 P. v% B% d
- });$ ?2 G4 r0 ^" h, M3 ]
- ' Y: P6 T9 ?3 d; t0 X" d
- digitalWrite(2,0);+ ?: s/ M/ M; o2 @( F
- mainAction();
+ B g9 V2 }) g& n E. k - if (digitalRead(0)){# \0 M- Y* h+ J1 t8 L1 g$ Y
- ESP.deepSleep(0);# h6 v9 U/ }7 o3 i
- } else {
6 i7 Z! N6 K) K0 W/ P/ D - server.begin();
% Q5 K/ q: }1 Y1 F0 f+ D - }7 [' m( u. q, W" `# ]
- }
k) ~1 r3 J9 \; X - void loop() {
! @3 G5 i7 x1 k3 n4 u2 q - server.handleClient();6 }# _4 i+ d4 D0 S. F* h
- delay(1);
) T& R) T" |1 j- z6 I6 c2 I! ]! [ - }
) C# k' L( c" x' l% X9 x7 i( L6 | - String doGet(String url){
5 l2 ^+ j2 o& H: J% [2 J) o - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ p. J' u1 o4 e3 v/ z4 e - HTTPClient http;
3 F8 O- F1 i9 [& S - Serial.println("[HTTP] begin...");8 R) {. A5 }7 n: d) J
- if (url.startsWith("https")) {% E7 U4 r! B( B8 R6 t0 D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* J, q* x4 C1 o- `% |) T: J - } else {3 T q9 z; Z6 w" w
- http.begin(url);/ j/ t" @# Q" u% h8 T3 C
- }
* p$ S8 z8 i Q5 E - Serial.println("[HTTP] GET...");
6 T/ N4 f7 m% X. l+ J, R3 a - int httpCode = http.GET();( n9 L* A) ~0 C# P+ P% }
- if (httpCode > 0) {9 m; V6 T. [2 v, E: m* d
- Serial.printf("[HTTP] code: %d\n", httpCode);; q+ C' o4 T" W8 `. t; D
- if (httpCode == HTTP_CODE_OK) {
1 T) G. k& \4 B9 Z+ j - String payload = http.getString();$ l( L7 d- o# s- `- `
- Serial.println(payload);' H' k# b3 x! d: M6 C
- Serial.print("\r\n");7 o% _9 p; q' J8 X1 x0 ?
- return payload;
9 d6 U a5 P- ? - }: L* U7 s; A- F: Q
- } else {
6 w' q! g' R8 {: r' C - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 W$ o. H) S. f) p2 s - http.errorToString(httpCode).c_str());
7 b( W8 y, t5 ? - }
/ L( v4 p" t% l; B- r" } - http.end();
3 j, ^2 P* I+ |' N& c - return "";
/ q6 T! n, w% t# } - }0 v% {$ d, F: w" ~
- }2 Q( T, T5 { v3 L) c
- void mainAction() {
8 w/ e4 W5 T! _6 b# [. o0 n, C3 e - // 发送请求
0 o' S$ n+ r/ Z- O' `0 w/ i - doGet("http://google.cn");
7 M2 J r3 {& Y' Z- c - }
- |* \& _) p, B1 g2 c. p
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